Search Class 10 Questions

100 results found for "less profit" in Class 10.

(50) से कम (4) के सभी धनात्मक गुणजों का योग कितना है?

What is the sum of all positive multiples of (4) less than (50)?

Explanation opens after your attempt
Correct Answer

C. (312)

Step 1

Concept

The AP is \(4,8,\ldots,48\) with (12) terms, and the sum is (312). Identifying the last allowed multiple is important.

Step 2

Why this answer is correct

The correct answer is C. (312). The AP is \(4,8,\ldots,48\) with (12) terms, and the sum is (312). Identifying the last allowed multiple is important.

Step 3

Exam Tip

श्रेढ़ी \(4,8,\ldots,48\) है जिसमें (12) पद हैं और योग (312) है। अंतिम स्वीकार्य गुणज पहचानना जरूरी है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(7,12,17,\ldots\) में (180) से कम अंतिम पद क्या है?

In the AP \(7,12,17,\ldots\), what is the last term less than (180)?

Explanation opens after your attempt
Correct Answer

C. (177)

Step 1

Concept

The terms are (7+5(n-1)). The last term less than (180) is (177) because the next term will be (182).

Step 2

Why this answer is correct

The correct answer is C. (177). The terms are (7+5(n-1)). The last term less than (180) is (177) because the next term will be (182).

Step 3

Exam Tip

पद (7+5(n-1)) हैं। (180) से कम अंतिम पद (177) है क्योंकि अगला पद (182) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(13,21,29,\ldots\) में (250) से छोटा सबसे बड़ा पद क्या है?

In the AP \(13,21,29,\ldots\), what is the greatest term less than (250)?

Explanation opens after your attempt
Correct Answer

C. (245)

Step 1

Concept

The terms are of the form (13+8(n-1)) and the greatest such term less than (250) is (245). In limit questions check the next term too.

Step 2

Why this answer is correct

The correct answer is C. (245). The terms are of the form (13+8(n-1)) and the greatest such term less than (250) is (245). In limit questions check the next term too.

Step 3

Exam Tip

पद (13+8(n-1)) के रूप में हैं और (250) से कम सबसे बड़ा ऐसा पद (245) है। सीमा वाले प्रश्न में अगले पद से भी जांच करें।

Open Question Page
Ask Friends

समान्तर श्रेणी \(2,6,10,\ldots\) में (75) से कम अंतिम पद क्या है?

In the AP \(2,6,10,\ldots\), what is the last term less than (75)?

Explanation opens after your attempt
Correct Answer

A. (74)

Step 1

Concept

The terms of this sequence are (2+4(n-1)). The last term less than (75) is (74).

Step 2

Why this answer is correct

The correct answer is A. (74). The terms of this sequence are (2+4(n-1)). The last term less than (75) is (74).

Step 3

Exam Tip

इस श्रेणी के पद (2+4(n-1)) हैं। (75) से कम अंतिम पद (74) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(5,12,19,\ldots\) में (150) से छोटा सबसे बड़ा पद क्या है?

In the AP \(5,12,19,\ldots\), what is the greatest term less than (150)?

Explanation opens after your attempt
Correct Answer

A. (145)

Step 1

Concept

The terms are of the form (5+7(n-1)). The greatest such term less than (150) is (145).

Step 2

Why this answer is correct

The correct answer is A. (145). The terms are of the form (5+7(n-1)). The greatest such term less than (150) is (145).

Step 3

Exam Tip

पद (5+7(n-1)) के रूप में हैं। (150) से कम सबसे बड़ा ऐसा पद (145) है।

Open Question Page
Ask Friends

(200) से कम (9) के धनात्मक गुणजों में अंतिम पद क्या है?

What is the last term among the positive multiples of (9) less than (200)?

Explanation opens after your attempt
Correct Answer

C. (198)

Step 1

Concept

In \(9,18,27,\ldots\), (9n<200), so the greatest (n=22) and the term is (198). For multiples, take the largest integer below the limit.

Step 2

Why this answer is correct

The correct answer is C. (198). In \(9,18,27,\ldots\), (9n<200), so the greatest (n=22) and the term is (198). For multiples, take the largest integer below the limit.

Step 3

Exam Tip

\(9,18,27,\ldots\) में (9n<200), इसलिए सबसे बड़ा (n=22) और पद (198) है। गुणजों में सीमा से कम सबसे बड़ा पूर्णांक लें।

Open Question Page
Ask Friends

समान्तर श्रेणी \(1,4,7,\ldots\) में (100) से छोटा सबसे बड़ा पद क्या है?

What is the greatest term less than (100) in the AP \(1,4,7,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (97)

Step 1

Concept

The terms are (1+3(n-1)). The greatest such term less than (100) is (97).

Step 2

Why this answer is correct

The correct answer is C. (97). The terms are (1+3(n-1)). The greatest such term less than (100) is (97).

Step 3

Exam Tip

इस AP के पद (1+3(n-1)) हैं। (100) से कम सबसे बड़ा ऐसा पद (97) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(6,13,20,\ldots\) में (90) से ठीक कम अंतिम पद कौन-सा है?

In the AP \(6,13,20,\ldots\), which is the last term just less than (90)?

Explanation opens after your attempt
Correct Answer

A. (83)

Step 1

Concept

(a_n=6+7(n-1)). Among terms less than (90), (83) occurs and the next term is (90).

Step 2

Why this answer is correct

The correct answer is A. (83). (a_n=6+7(n-1)). Among terms less than (90), (83) occurs and the next term is (90).

Step 3

Exam Tip

(a_n=6+7(n-1))। (90) से कम पदों में (83) आता है और अगला (90) है।

Open Question Page
Ask Friends

किस विकल्प में दी गई संख्या अपरिमेय है और (5) से छोटी है?

In which option is the given number irrational and less than (5)?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{24}\)

Step 1

Concept

\(\sqrt{24}\) is irrational because (24) is not a perfect square.

Step 2

Why this answer is correct

Since (16<24<25), \(4<\sqrt{24}<5\).

Step 3

Exam Tip

In condition-based questions, check both irrationality and range. चरण 1: \(\sqrt{24}\) अपरिमेय है क्योंकि (24) पूर्ण वर्ग नहीं है। चरण 2: (16<24<25), इसलिए \(4<\sqrt{24}<5\)। चरण 3: शर्तों वाले प्रश्न में अपरिमेयता और सीमा दोनों जांचें।

Open Question Page
Ask Friends

एक कंपनी का लाभ पहले वर्ष (100000) रुपये है और हर वर्ष (15000) रुपये बढ़ता है। पहले (9) वर्षों का कुल लाभ कितना होगा?

A company's profit is (100000) rupees in the first year and increases by (15000) rupees every year. What is the total profit for the first (9) years?

Explanation opens after your attempt
Correct Answer

D. (1440000)

Step 1

Concept

The profits form the AP \(100000,115000,130000,\ldots\) and \(S_9=1440000\). Exam tip: treat yearly profits as separate terms.

Step 2

Why this answer is correct

The correct answer is D. (1440000). The profits form the AP \(100000,115000,130000,\ldots\) and \(S_9=1440000\). Exam tip: treat yearly profits as separate terms.

Step 3

Exam Tip

लाभ \(100000,115000,130000,\ldots\) समान्तर श्रेणी है और \(S_9=1440000\)। परीक्षा में वार्षिक लाभ को अलग-अलग पद मानें।

Open Question Page
Ask Friends

एक कंपनी का लाभ पहले वर्ष (90000) रुपये है और हर वर्ष (12000) रुपये बढ़ता है। पहले (8) वर्षों का कुल लाभ कितना होगा?

A company's profit is (90000) rupees in the first year and increases by (12000) rupees every year. What is the total profit for the first (8) years?

Explanation opens after your attempt
Correct Answer

D. (1056000)

Step 1

Concept

The profits form the AP \(90000,102000,114000,\ldots\) and \(S_8=1056000\). Exam tip: treat yearly profits as separate terms.

Step 2

Why this answer is correct

The correct answer is D. (1056000). The profits form the AP \(90000,102000,114000,\ldots\) and \(S_8=1056000\). Exam tip: treat yearly profits as separate terms.

Step 3

Exam Tip

लाभ \(90000,102000,114000,\ldots\) समान्तर श्रेणी है और \(S_8=1056000\)। परीक्षा में वार्षिक लाभ को अलग-अलग पद मानें।

Open Question Page
Ask Friends

एक कंपनी का लाभ पहले वर्ष (75000) रुपये है और हर वर्ष (9000) रुपये बढ़ता है। पहले (7) वर्षों का कुल लाभ कितना होगा?

A company's profit is (75000) rupees in the first year and increases by (9000) rupees every year. What is the total profit for the first (7) years?

Explanation opens after your attempt
Correct Answer

D. (714000)

Step 1

Concept

The profits form the AP \(75000,84000,93000,\ldots\) and \(S_7=714000\). Exam tip: treat yearly profits as separate terms.

Step 2

Why this answer is correct

The correct answer is D. (714000). The profits form the AP \(75000,84000,93000,\ldots\) and \(S_7=714000\). Exam tip: treat yearly profits as separate terms.

Step 3

Exam Tip

लाभ \(75000,84000,93000,\ldots\) समान्तर श्रेणी है और \(S_7=714000\)। परीक्षा में वार्षिक लाभ को अलग-अलग पद मानें।

Open Question Page
Ask Friends

एक कंपनी का लाभ पहले वर्ष (60000) रुपये है और हर वर्ष (8000) रुपये बढ़ता है। पहले (6) वर्षों का कुल लाभ कितना होगा?

A company's profit is (60000) rupees in the first year and increases by (8000) rupees every year. What is the total profit for the first (6) years?

Explanation opens after your attempt
Correct Answer

D. (480000)

Step 1

Concept

The profits form the AP \(60000,68000,76000,\ldots\) and \(S_6=480000\). Exam tip: treat yearly profits as separate terms.

Step 2

Why this answer is correct

The correct answer is D. (480000). The profits form the AP \(60000,68000,76000,\ldots\) and \(S_6=480000\). Exam tip: treat yearly profits as separate terms.

Step 3

Exam Tip

लाभ \(60000,68000,76000,\ldots\) समान्तर श्रेणी है और \(S_6=480000\)। परीक्षा में वार्षिक लाभ को अलग-अलग पद मानें।

Open Question Page
Ask Friends

एक कंपनी का लाभ पहले वर्ष (50000) रुपये है और हर वर्ष (5000) रुपये बढ़ता है। पहले (8) वर्षों का कुल लाभ कितना होगा?

A company's profit is (50000) rupees in the first year and increases by (5000) rupees every year. What is the total profit for the first (8) years?

Explanation opens after your attempt
Correct Answer

D. (540000)

Step 1

Concept

The profits form the AP \(50000,55000,60000,\ldots\), and \(S_8=540000\). Exam tip: treat yearly profits as separate terms.

Step 2

Why this answer is correct

The correct answer is D. (540000). The profits form the AP \(50000,55000,60000,\ldots\), and \(S_8=540000\). Exam tip: treat yearly profits as separate terms.

Step 3

Exam Tip

लाभ \(50000,55000,60000,\ldots\) समान्तर श्रेणी है और \(S_8=540000\)। परीक्षा में वार्षिक लाभ को अलग-अलग पद मानें।

Open Question Page
Ask Friends

एक कंपनी का वार्षिक लाभ पहले वर्ष (30000) रुपये है और हर वर्ष (3000) रुपये बढ़ता है। (7) वर्षों का कुल लाभ कितना होगा?

A company's annual profit is (30000) rupees in the first year and increases by (3000) rupees every year. What is the total profit in (7) years?

Explanation opens after your attempt
Correct Answer

C. (273000)

Step 1

Concept

The profits are \(30000,33000,36000,\ldots\) and \(S_7=273000\). Exam tip: view yearly profits as AP terms.

Step 2

Why this answer is correct

The correct answer is C. (273000). The profits are \(30000,33000,36000,\ldots\) and \(S_7=273000\). Exam tip: view yearly profits as AP terms.

Step 3

Exam Tip

लाभ \(30000,33000,36000,\ldots\) है और \(S_7=273000\)। परीक्षा में वार्षिक लाभ को ए.पी. के पदों की तरह देखें।

Open Question Page
Ask Friends

एक कंपनी का वार्षिक लाभ पहले वर्ष (25000) रुपये है और हर वर्ष (2000) रुपये बढ़ता है। (6) वर्षों का कुल लाभ कितना होगा?

A company's annual profit is (25000) rupees in the first year and increases by (2000) rupees every year. What is the total profit in (6) years?

Explanation opens after your attempt
Correct Answer

B. (180000)

Step 1

Concept

The profits are \(25000,27000,29000,\ldots\) and \(S_6=180000\). Exam tip: view yearly profits as AP terms.

Step 2

Why this answer is correct

The correct answer is B. (180000). The profits are \(25000,27000,29000,\ldots\) and \(S_6=180000\). Exam tip: view yearly profits as AP terms.

Step 3

Exam Tip

लाभ \(25000,27000,29000,\ldots\) है और \(S_6=180000\)। परीक्षा में वार्षिक लाभ को ए.पी. के पदों की तरह देखें।

Open Question Page
Ask Friends

एक कंपनी का वार्षिक लाभ पहले वर्ष (18000) रुपये है और हर वर्ष (1000) रुपये बढ़ता है। (5) वर्षों का कुल लाभ कितना होगा?

A company's annual profit is (18000) rupees in the first year and increases by (1000) rupees every year. What is the total profit in (5) years?

Explanation opens after your attempt
Correct Answer

A. (100000)

Step 1

Concept

The profits are \(18000,19000,20000,\ldots\) and \(S_5=100000\). Exam tip: view yearly profits as AP terms.

Step 2

Why this answer is correct

The correct answer is A. (100000). The profits are \(18000,19000,20000,\ldots\) and \(S_5=100000\). Exam tip: view yearly profits as AP terms.

Step 3

Exam Tip

लाभ \(18000,19000,20000,\ldots\) है और \(S_5=100000\)। परीक्षा में वार्षिक लाभ को ए.पी. के पदों की तरह देखें।

Open Question Page
Ask Friends

एक वस्तु (₹1200) में बेची गई। लाभ प्रतिशत संख्यात्मक रूप से क्रय मूल्य के \(\frac{1}{20}\) के बराबर है और लाभ (₹200) है। क्रय मूल्य क्या है?

An article is sold for (₹1200). The profit percentage is numerically equal to \(\frac{1}{20}\) of the cost price and the profit is (₹200). What is the cost price?

Explanation opens after your attempt
Correct Answer

C. (₹1000)

Step 1

Concept

The cost price is (1200-200=1000), and profit percentage is \(\frac{200}{1000}\times100=20\). This does not match \(\frac{1000}{20}=50\), so the statement is inconsistent.

Step 2

Why this answer is correct

The correct answer is C. (₹1000). The cost price is (1200-200=1000), and profit percentage is \(\frac{200}{1000}\times100=20\). This does not match \(\frac{1000}{20}=50\), so the statement is inconsistent.

Step 3

Exam Tip

क्रय मूल्य (1200-200=1000) है और लाभ प्रतिशत \(\frac{200}{1000}\times100=20\) है। यह दी गई शर्त \(\frac{1000}{20}=50\) से मेल नहीं खाती, इसलिए कथन असंगत है।

Open Question Page
Ask Friends

यदि चित्र में स्थिरता अधिक और गति कम दिखानी हो तो कौन सी रेखा योजना बेहतर है?

If a picture must show more stability and less movement which line plan is better?

Explanation opens after your attempt
Correct Answer

B. संतुलित क्षैतिज और ऊर्ध्वाधर रेखाएंBalanced horizontal and vertical lines

Step 1

Concept

Horizontal and vertical lines give a stable effect. In exams identify line direction for stability.

Step 2

Why this answer is correct

The correct answer is B. संतुलित क्षैतिज और ऊर्ध्वाधर रेखाएं / Balanced horizontal and vertical lines. Horizontal and vertical lines give a stable effect. In exams identify line direction for stability.

Step 3

Exam Tip

क्षैतिज और ऊर्ध्वाधर रेखाएं स्थिर प्रभाव देती हैं। परीक्षा में स्थिरता के लिए रेखा दिशा पहचानें।

Open Question Page
Ask Friends

स्टिपलिंग में बिंदुओं की समान घनता चेहरे को कम प्राकृतिक क्यों बना सकती है?

Why can equal dot density in stippling make a face less natural?

Explanation opens after your attempt
Correct Answer

C. क्योंकि त्वचा के कोमल मान बदलाव गायब हो जाते हैंBecause soft value changes of skin disappear

Step 1

Concept

Subtle value changes are necessary in a face. Exam tip: keep stippling density sensitive.

Step 2

Why this answer is correct

The correct answer is C. क्योंकि त्वचा के कोमल मान बदलाव गायब हो जाते हैं / Because soft value changes of skin disappear. Subtle value changes are necessary in a face. Exam tip: keep stippling density sensitive.

Step 3

Exam Tip

चेहरे में सूक्ष्म मान परिवर्तन जरूरी है। परीक्षा में stippling density को संवेदनशील रखें।

Open Question Page
Ask Friends

सममित संतुलन कब औपचारिक होते हुए भी कम रोचक लग सकता है?

When can symmetrical balance look formal but less interesting?

Explanation opens after your attempt
Correct Answer

A. जब दोनों ओर सब कुछ बिल्कुल समान और बिना बदलाव होWhen both sides are exactly same without variation

Step 1

Concept

Excessive sameness can create monotony. Exam tip: remember symmetry with variation.

Step 2

Why this answer is correct

The correct answer is A. जब दोनों ओर सब कुछ बिल्कुल समान और बिना बदलाव हो / When both sides are exactly same without variation. Excessive sameness can create monotony. Exam tip: remember symmetry with variation.

Step 3

Exam Tip

अत्यधिक समानता एकरसता पैदा कर सकती है। परीक्षा में symmetry with variation याद रखें।

Open Question Page
Ask Friends

किस रंग संयोजन में विरोध अधिक पर समरसता कम होगी?

Which colour combination will have more contrast but less harmony?

Explanation opens after your attempt
Correct Answer

B. लाल और हराRed and green

Step 1

Concept

Red and green are complementary so contrast is strong. Exam tip: connect complementary pair with high contrast.

Step 2

Why this answer is correct

The correct answer is B. लाल और हरा / Red and green. Red and green are complementary so contrast is strong. Exam tip: connect complementary pair with high contrast.

Step 3

Exam Tip

लाल और हरा पूरक रंग हैं इसलिए विरोध तेज होता है। परीक्षा में complementary pair को high contrast से जोड़ें।

Open Question Page
Ask Friends

वायुमंडलीय परिप्रेक्ष्य में दूर वस्तु हल्की और कम स्पष्ट क्यों दिखाई जाती है?

Why is a distant object shown lighter and less clear in atmospheric perspective?

Explanation opens after your attempt
Correct Answer

A. दूरी और वातावरण का प्रभाव दिखाने के लिएTo show effect of distance and atmosphere

Step 1

Concept

Distant objects can appear hazy and light due to atmosphere. Exam tip: connect atmospheric depth with distance.

Step 2

Why this answer is correct

The correct answer is A. दूरी और वातावरण का प्रभाव दिखाने के लिए / To show effect of distance and atmosphere. Distant objects can appear hazy and light due to atmosphere. Exam tip: connect atmospheric depth with distance.

Step 3

Exam Tip

दूर वस्तु वातावरण के कारण धुंधली और हल्की लग सकती है। परीक्षा में atmospheric depth को distance से जोड़ें।

Open Question Page
Ask Friends

किस रंग योजना में सबसे अधिक एकता और कम विरोध होगा?

Which colour scheme will have more unity and less contrast?

Explanation opens after your attempt
Correct Answer

C. समानांतर योजनाAnalogous scheme

Step 1

Concept

Analogous colours are nearby so they give harmony. Exam tip: connect analogous scheme with unity.

Step 2

Why this answer is correct

The correct answer is C. समानांतर योजना / Analogous scheme. Analogous colours are nearby so they give harmony. Exam tip: connect analogous scheme with unity.

Step 3

Exam Tip

समानांतर रंग पास पास होते हैं इसलिए समरसता देते हैं। परीक्षा में analogous scheme को unity से जोड़ें।

Open Question Page
Ask Friends

दूर की वस्तु को कम स्पष्ट दिखाने से कौन सा गहराई संकेत बनता है?

Which depth cue is created by showing a far object less clear?

Explanation opens after your attempt
Correct Answer

C. वायुमंडलीय गहराईAtmospheric depth

Step 1

Concept

A far object can appear faint and light. Exam tip: connect atmospheric perspective with distance.

Step 2

Why this answer is correct

The correct answer is C. वायुमंडलीय गहराई / Atmospheric depth. A far object can appear faint and light. Exam tip: connect atmospheric perspective with distance.

Step 3

Exam Tip

दूर वस्तु धुंधली और हल्की दिख सकती है। परीक्षा में atmospheric perspective को distance से जोड़ें।

Open Question Page
Ask Friends

दूर की वस्तु को हल्का नीला और कम स्पष्ट दिखाना किस संयुक्त प्रभाव का उदाहरण है?

Showing a distant object light blue and less clear is an example of which combined effect?

Explanation opens after your attempt
Correct Answer

A. रंग ताप मान और स्थानColour temperature value and space

Step 1

Concept

Cool colour light value and low clarity show distance. Exam tip: observe depth cues together.

Step 2

Why this answer is correct

The correct answer is A. रंग ताप मान और स्थान / Colour temperature value and space. Cool colour light value and low clarity show distance. Exam tip: observe depth cues together.

Step 3

Exam Tip

ठंडा रंग हल्का मान और कम स्पष्टता दूरी दिखाते हैं। परीक्षा में depth cues को संयुक्त रूप से देखें।

Open Question Page
Ask Friends

समानांतर रंगों से बने चित्र में अचानक तेज विरोध कम क्यों होता है?

Why is sudden strong contrast less in a picture made with analogous colours?

Explanation opens after your attempt
Correct Answer

A. क्योंकि रंग पास पास होते हैंBecause colours are close to each other

Step 1

Concept

Nearby colours have less contrast and more harmony. Exam tip: connect analogous colours with harmony.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि रंग पास पास होते हैं / Because colours are close to each other. Nearby colours have less contrast and more harmony. Exam tip: connect analogous colours with harmony.

Step 3

Exam Tip

पास पास रंगों में विरोध कम और समरसता अधिक होती है। परीक्षा में analogous colours को harmony से जोड़ें।

Open Question Page
Ask Friends

पृष्ठभूमि को हल्का और कम विवरण वाला बनाने से क्या संकेत मिलता है?

What is indicated by making background lighter and less detailed?

Explanation opens after your attempt
Correct Answer

B. वह दूर हैIt is far

Step 1

Concept

Distant objects can be shown lighter and less clear. Exam tip: connect background with distance.

Step 2

Why this answer is correct

The correct answer is B. वह दूर है / It is far. Distant objects can be shown lighter and less clear. Exam tip: connect background with distance.

Step 3

Exam Tip

दूर वस्तुएं हल्की और कम स्पष्ट दिखाई जा सकती हैं। परीक्षा में background को distance से जोड़ें।

Open Question Page
Ask Friends

अग्रभूमि में ज्यादा बनावट और पृष्ठभूमि में कम बनावट क्यों रखी जाती है?

Why is more texture kept in foreground and less in background?

Explanation opens after your attempt
Correct Answer

C. दूरी का अंतर दिखाने के लिएTo show difference of distance

Step 1

Concept

Near objects show more detail and texture. Exam tip: understand space through texture detail.

Step 2

Why this answer is correct

The correct answer is C. दूरी का अंतर दिखाने के लिए / To show difference of distance. Near objects show more detail and texture. Exam tip: understand space through texture detail.

Step 3

Exam Tip

पास वस्तु में अधिक विवरण और बनावट दिखती है। परीक्षा में बनावट विवरण से स्थान समझें।

Open Question Page
Ask Friends

दूर के घरों को हल्का और कम विवरण वाला बनाना किसका उपयोग है?

Making distant houses light and less detailed is the use of what?

Explanation opens after your attempt
Correct Answer

D. गहराई का संकेतDepth cue

Step 1

Concept

Less detail in far objects gives a depth cue. Exam tip: connect detail reduction with distance.

Step 2

Why this answer is correct

The correct answer is D. गहराई का संकेत / Depth cue. Less detail in far objects gives a depth cue. Exam tip: connect detail reduction with distance.

Step 3

Exam Tip

दूर वस्तु में कम विवरण गहराई का संकेत देता है। परीक्षा में विवरण कम करना को दूरी से जोड़ें।

Open Question Page
Ask Friends

कम चमकीला रंग किस स्थिति का उदाहरण है?

A less bright colour is an example of which condition?

Explanation opens after your attempt
Correct Answer

D. कम तीव्रताLow intensity

Step 1

Concept

A less bright colour shows low intensity. Exam tip: connect dull colour with low intensity.

Step 2

Why this answer is correct

The correct answer is D. कम तीव्रता / Low intensity. A less bright colour shows low intensity. Exam tip: connect dull colour with low intensity.

Step 3

Exam Tip

कम चमक वाला रंग कम तीव्रता दिखाता है। परीक्षा में dull colour को low intensity से जोड़ें।

Open Question Page
Ask Friends

नर्मदा और तापी के मुहाने पर बड़े डेल्टा कम बनने का सरल कारण क्या है?

What is the simple reason for large deltas being less common at the mouths of Narmada and Tapi?

Explanation opens after your attempt
Correct Answer

B. वे पश्चिम की ओर बहकर मुहाना अधिक बनाती हैंThey flow westward and form estuaries more commonly

Step 1

Concept

Narmada and Tapi are west flowing rivers and commonly form estuaries into the Arabian Sea. For exams remember the difference between delta and estuary.

Step 2

Why this answer is correct

The correct answer is B. वे पश्चिम की ओर बहकर मुहाना अधिक बनाती हैं / They flow westward and form estuaries more commonly. Narmada and Tapi are west flowing rivers and commonly form estuaries into the Arabian Sea. For exams remember the difference between delta and estuary.

Step 3

Exam Tip

नर्मदा और तापी पश्चिममुखी नदियां हैं और अरब सागर में प्रायः मुहाना बनाती हैं। परीक्षा में डेल्टा और मुहाना का अंतर याद रखें।

Open Question Page
Ask Friends

पश्चिमी तटीय मैदानों में बड़े डेल्टा कम विकसित होने का कारण क्या है?

Why are large deltas less developed on the western coastal plains?

Explanation opens after your attempt
Correct Answer

A. तट संकीर्ण है और नदियां छोटी तथा तीव्र ढाल वाली हैंThe coast is narrow and rivers are short with steep gradients

Step 1

Concept

The western coast is narrow and west flowing rivers are generally short. For exams compare western and eastern coasts.

Step 2

Why this answer is correct

The correct answer is A. तट संकीर्ण है और नदियां छोटी तथा तीव्र ढाल वाली हैं / The coast is narrow and rivers are short with steep gradients. The western coast is narrow and west flowing rivers are generally short. For exams compare western and eastern coasts.

Step 3

Exam Tip

पश्चिमी तट संकीर्ण है और पश्चिममुखी नदियां सामान्यतः छोटी होती हैं। परीक्षा में पश्चिमी और पूर्वी तट की तुलना करें।

Open Question Page
Ask Friends

उपनिवेश मुक्ति आंदोलनों में महिलाओं की भूमिका को स्रोतों में कम क्यों दिखाया जा सकता है?

Why may women's role in decolonization movements appear less in sources?

Explanation opens after your attempt
Correct Answer

A. क्योंकि अभिलेख और इतिहास लेखन अक्सर पुरुष नेतृत्व को अधिक केंद्रित करते थेBecause archives and historiography often centered male leadership more

Step 1

Concept

Sources should be read critically to understand women's role. For exams add gender perspective.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि अभिलेख और इतिहास लेखन अक्सर पुरुष नेतृत्व को अधिक केंद्रित करते थे / Because archives and historiography often centered male leadership more. Sources should be read critically to understand women's role. For exams add gender perspective.

Step 3

Exam Tip

महिलाओं की भूमिका समझने के लिए स्रोतों को आलोचनात्मक पढ़ना चाहिए। परीक्षा में लैंगिक दृष्टि जोड़ें।

Open Question Page
Ask Friends

फिलिपींस की स्वतंत्रता उपनिवेश मुक्ति में कौन सा कम चर्चित पहलू दिखाती है?

Which less discussed aspect of decolonization does Philippine independence show?

Explanation opens after your attempt
Correct Answer

A. यूरोपीय के अलावा अमेरिकी औपनिवेशिक प्रभाव भी थाThere was American colonial influence beyond European colonialism

Step 1

Concept

The Philippines example shows diversity of colonial powers. For exams remember the United States and 1946.

Step 2

Why this answer is correct

The correct answer is A. यूरोपीय के अलावा अमेरिकी औपनिवेशिक प्रभाव भी था / There was American colonial influence beyond European colonialism. The Philippines example shows diversity of colonial powers. For exams remember the United States and 1946.

Step 3

Exam Tip

फिलिपींस का उदाहरण उपनिवेशी शक्तियों की विविधता दिखाता है। परीक्षा में अमेरिका और उन्नीस सौ छियालिस याद रखें।

Open Question Page
Ask Friends

सांची स्तूप के तोरणों पर बुद्ध को सीधे मानव रूप में कम दिखाने की परंपरा को क्या कहा जाता है?

The tradition of showing Buddha less in direct human form on Sanchi gateways is called what?

Explanation opens after your attempt
Correct Answer

A. अनाइकोनिक प्रस्तुतिAniconic representation

Step 1

Concept

In early Buddhist art, the tradition of showing Buddha through symbols is called aniconic. Study Sanchi symbols carefully.

Step 2

Why this answer is correct

The correct answer is A. अनाइकोनिक प्रस्तुति / Aniconic representation. In early Buddhist art, the tradition of showing Buddha through symbols is called aniconic. Study Sanchi symbols carefully.

Step 3

Exam Tip

प्रारंभिक बौद्ध कला में बुद्ध को प्रतीकों से दिखाने की परंपरा अनाइकोनिक कही जाती है। सांची के प्रतीकों को ध्यान से पढ़ें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (2400) लीटर पानी है और हर अगले दिन (90) लीटर पानी कम होता है। पहले (16) दिनों में देखी गई पानी की कुल मात्रा कितनी होगी?

A reservoir has (2400) litres of water on the first day and (90) litres less each next day. What is the total observed water amount over the first (16) days?

Explanation opens after your attempt
Correct Answer

C. (27600)

Step 1

Concept

The amounts form the decreasing AP \(2400,2310,2220,\ldots\) and \(S_{16}=27600\). Exam tip: the common difference is negative in a decreasing quantity.

Step 2

Why this answer is correct

The correct answer is C. (27600). The amounts form the decreasing AP \(2400,2310,2220,\ldots\) and \(S_{16}=27600\). Exam tip: the common difference is negative in a decreasing quantity.

Step 3

Exam Tip

मात्राएं \(2400,2310,2220,\ldots\) घटती समान्तर श्रेणी हैं और \(S_{16}=27600\)। परीक्षा में घटती मात्रा में सार्व अंतर ऋणात्मक होता है।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (1800) लीटर पानी है और हर अगले दिन (75) लीटर पानी कम होता है। पहले (14) दिनों में देखी गई पानी की कुल मात्रा कितनी होगी?

A reservoir has (1800) litres of water on the first day and (75) litres less each next day. What is the total observed water amount over the first (14) days?

Explanation opens after your attempt
Correct Answer

C. (18375)

Step 1

Concept

The amounts form the decreasing AP \(1800,1725,1650,\ldots\) and \(S_{14}=18375\). Exam tip: keep (d) negative for decreasing quantities.

Step 2

Why this answer is correct

The correct answer is C. (18375). The amounts form the decreasing AP \(1800,1725,1650,\ldots\) and \(S_{14}=18375\). Exam tip: keep (d) negative for decreasing quantities.

Step 3

Exam Tip

मात्राएं \(1800,1725,1650,\ldots\) घटती समान्तर श्रेणी हैं और \(S_{14}=18375\)। परीक्षा में घटती मात्रा के लिए (d) ऋणात्मक रखें।

Open Question Page
Ask Friends

एक मशीन पर पहले दिन (1000) रुपये खर्च हुए और हर अगले दिन (45) रुपये कम खर्च हुए। (12) दिनों में कुल खर्च कितना होगा?

A machine costs (1000) rupees on the first day and (45) rupees less each next day. What is the total cost in (12) days?

Explanation opens after your attempt
Correct Answer

D. (9030)

Step 1

Concept

The costs form the decreasing AP \(1000,955,910,\ldots\) and \(S_{12}=9030\). Exam tip: take (d) negative for decreasing costs.

Step 2

Why this answer is correct

The correct answer is D. (9030). The costs form the decreasing AP \(1000,955,910,\ldots\) and \(S_{12}=9030\). Exam tip: take (d) negative for decreasing costs.

Step 3

Exam Tip

खर्च \(1000,955,910,\ldots\) घटती समान्तर श्रेणी है और \(S_{12}=9030\)। परीक्षा में घटते खर्च के लिए (d) ऋणात्मक लें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (210) लीटर पानी बचा और हर अगले दिन (12) लीटर कम हुआ। किस दिन (66) लीटर पानी बचेगा?

A reservoir has (210) litres of water on the first day and (12) litres less each next day. On which day will (66) litres remain?

Explanation opens after your attempt
Correct Answer

C. (13)

Step 1

Concept

From (210+(n-1)(-12)=66), (n=13). Exam tip: keep (d) negative in a decreasing AP.

Step 2

Why this answer is correct

The correct answer is C. (13). From (210+(n-1)(-12)=66), (n=13). Exam tip: keep (d) negative in a decreasing AP.

Step 3

Exam Tip

(210+(n-1)(-12)=66) से (n=13) मिलता है। परीक्षा में घटती श्रेणी में (d) ऋणात्मक रखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (1500) लीटर पानी है और हर अगले दिन (60) लीटर पानी कम होता है। पहले (12) दिनों में देखी गई पानी की कुल मात्रा कितनी होगी?

A reservoir has (1500) litres of water on the first day and (60) litres less each next day. What is the total observed water amount over the first (12) days?

Explanation opens after your attempt
Correct Answer

C. (14040)

Step 1

Concept

The amounts form the decreasing AP \(1500,1440,1380,\ldots\) and \(S_{12}=14040\). Exam tip: keep (d) negative for decreasing quantities.

Step 2

Why this answer is correct

The correct answer is C. (14040). The amounts form the decreasing AP \(1500,1440,1380,\ldots\) and \(S_{12}=14040\). Exam tip: keep (d) negative for decreasing quantities.

Step 3

Exam Tip

मात्राएं \(1500,1440,1380,\ldots\) घटती समान्तर श्रेणी हैं और \(S_{12}=14040\)। परीक्षा में घटती मात्रा के लिए (d) ऋणात्मक रखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (1200) लीटर पानी है और हर अगले दिन (50) लीटर पानी कम होता है। पहले (15) दिनों में देखी गई पानी की कुल मात्रा कितनी होगी?

A reservoir has (1200) litres of water on the first day and (50) litres less each next day. What is the total observed water amount over the first (15) days?

Explanation opens after your attempt
Correct Answer

C. (12750)

Step 1

Concept

The amounts form the decreasing AP \(1200,1150,1100,\ldots\) and \(S_{15}=12750\). Exam tip: keep (d) negative for decreasing quantities.

Step 2

Why this answer is correct

The correct answer is C. (12750). The amounts form the decreasing AP \(1200,1150,1100,\ldots\) and \(S_{15}=12750\). Exam tip: keep (d) negative for decreasing quantities.

Step 3

Exam Tip

मात्राएं \(1200,1150,1100,\ldots\) घटती समान्तर श्रेणी हैं और \(S_{15}=12750\)। परीक्षा में घटती मात्रा के लिए (d) ऋणात्मक रखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (1000) लीटर पानी है और हर अगले दिन (40) लीटर पानी कम होता है। पहले (10) दिनों में देखी गई पानी की कुल मात्रा कितनी होगी?

A reservoir has (1000) litres of water on the first day and (40) litres less each next day. What is the total observed water amount over the first (10) days?

Explanation opens after your attempt
Correct Answer

A. (8200)

Step 1

Concept

The amounts form the decreasing AP \(1000,960,920,\ldots\), and \(S_{10}=8200\). Exam tip: keep (d) negative for decreasing quantities.

Step 2

Why this answer is correct

The correct answer is A. (8200). The amounts form the decreasing AP \(1000,960,920,\ldots\), and \(S_{10}=8200\). Exam tip: keep (d) negative for decreasing quantities.

Step 3

Exam Tip

मात्राएं \(1000,960,920,\ldots\) घटती समान्तर श्रेणी हैं और \(S_{10}=8200\)। परीक्षा में घटती मात्रा के लिए (d) ऋणात्मक रखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (780) लीटर पानी है और हर अगले दिन (35) लीटर कम होता है। (15)वें दिन कितना पानी बचेगा?

A reservoir has (780) litres of water on the first day and (35) litres less each next day. How much water remains on the (15)th day?

Explanation opens after your attempt
Correct Answer

C. (290)

Step 1

Concept

This is a decreasing AP and (a_{15}=780+14(-35)=290). Exam tip: write the decrease as a negative difference.

Step 2

Why this answer is correct

The correct answer is C. (290). This is a decreasing AP and (a_{15}=780+14(-35)=290). Exam tip: write the decrease as a negative difference.

Step 3

Exam Tip

यह घटती समान्तर श्रेणी है और (a_{15}=780+14(-35)=290)। परीक्षा में कमी को ऋणात्मक अंतर लिखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (640) लीटर पानी है और हर अगले दिन (30) लीटर कम होता है। (13)वें दिन कितना पानी बचेगा?

A reservoir has (640) litres of water on the first day and (30) litres less each next day. How much water remains on the (13)th day?

Explanation opens after your attempt
Correct Answer

C. (280) लीटर

Step 1

Concept

This is a decreasing AP and (a_{13}=640+12(-30)=280). Exam tip: write the decrease as a negative difference.

Step 2

Why this answer is correct

The correct answer is C. (280) लीटर. This is a decreasing AP and (a_{13}=640+12(-30)=280). Exam tip: write the decrease as a negative difference.

Step 3

Exam Tip

यह घटती समान्तर श्रेणी है और (a_{13}=640+12(-30)=280)। परीक्षा में कमी को ऋणात्मक अंतर लिखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (500) लीटर पानी है और हर अगले दिन (25) लीटर कम होता है। (12)वें दिन कितना पानी बचेगा?

A reservoir has (500) litres of water on the first day and (25) litres less each next day. How much water remains on the (12)th day?

Explanation opens after your attempt
Correct Answer

B. (225)

Step 1

Concept

This is a decreasing AP and (a_{12}=500+11(-25)=225). Exam tip: write the decrease as a negative difference.

Step 2

Why this answer is correct

The correct answer is B. (225). This is a decreasing AP and (a_{12}=500+11(-25)=225). Exam tip: write the decrease as a negative difference.

Step 3

Exam Tip

यह घटती समान्तर श्रेणी है और (a_{12}=500+11(-25)=225)। परीक्षा में कमी को ऋणात्मक अंतर लिखें।

Open Question Page
Ask Friends

एक जलाशय में पहले दिन (1000) लीटर पानी है और हर दिन (50) लीटर पानी कम हो जाता है। (8)वें दिन कितना पानी बचेगा?

A reservoir has (1000) litres of water on the first day and (50) litres less each day. How much water remains on the (8)th day?

Explanation opens after your attempt
Correct Answer

B. (650) लीटर

Step 1

Concept

This is a decreasing AP. (a_8=1000+7(-50)=650).

Step 2

Why this answer is correct

The correct answer is B. (650) लीटर. This is a decreasing AP. (a_8=1000+7(-50)=650).

Step 3

Exam Tip

यह घटती समान्तर श्रेणी है। (a_8=1000+7(-50)=650)।

Open Question Page
Ask Friends

(300) से कम (25) के सभी तीन अंकों वाले गुणजों का योग कितना है?

What is the sum of all three-digit multiples of (25) less than (300)?

Explanation opens after your attempt
Correct Answer

A. (1500)

Step 1

Concept

The multiples are \(100,125,\ldots,275\), and there are (8) terms, so the sum is (1500). Decide the first and last terms according to the limit.

Step 2

Why this answer is correct

The correct answer is A. (1500). The multiples are \(100,125,\ldots,275\), and there are (8) terms, so the sum is (1500). Decide the first and last terms according to the limit.

Step 3

Exam Tip

गुणज \(100,125,\ldots,275\) हैं और (8) पद हैं, इसलिए योग (1500) है। सीमा के अनुसार पहला और अंतिम पद तय करें।

Open Question Page
Ask Friends

(100) से कम (6) के सभी धनात्मक गुणजों का योग ज्ञात कीजिए।

Find the sum of all positive multiples of (6) less than (100).

Explanation opens after your attempt
Correct Answer

A. (816)

Step 1

Concept

The multiples are from (6) to (96), and there are (16) terms, so the sum is (816). In boundary questions, decide the last term first.

Step 2

Why this answer is correct

The correct answer is A. (816). The multiples are from (6) to (96), and there are (16) terms, so the sum is (816). In boundary questions, decide the last term first.

Step 3

Exam Tip

गुणज (6) से (96) तक हैं और (16) पद हैं, इसलिए योग (816) है। सीमा वाले प्रश्न में अंतिम पद पहले तय करें।

Open Question Page
Ask Friends

समान्तर श्रेणी \(75,98,121,\ldots\) में कितने पद (2500) से कम हैं?

In the AP \(75,98,121,\ldots\), how many terms are less than (2500)?

Explanation opens after your attempt
Correct Answer

C. (106)

Step 1

Concept

From (75+23(n-1)<2500), (23(n-1)<2425). The greatest (n=106).

Step 2

Why this answer is correct

The correct answer is C. (106). From (75+23(n-1)<2500), (23(n-1)<2425). The greatest (n=106).

Step 3

Exam Tip

(75+23(n-1)<2500) से (23(n-1)<2425)। सबसे बड़ा (n=106) है।

Open Question Page
Ask Friends

(5000) से कम (41) के धनात्मक गुणजों की समान्तर श्रेणी में अंतिम पद क्या होगा?

What will be the last term in the AP of positive multiples of (41) less than (5000)?

Explanation opens after your attempt
Correct Answer

B. (4961)

Step 1

Concept

In (41n<5000), the greatest (n=121). The last term will be \(41\times121=4961\).

Step 2

Why this answer is correct

The correct answer is B. (4961). In (41n<5000), the greatest (n=121). The last term will be \(41\times121=4961\).

Step 3

Exam Tip

(41n<5000) में सबसे बड़ा (n=121) है। अंतिम पद \(41\times121=4961\) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(310,291,272,\ldots\) में (75) से छोटा पहला पद कौन-सा है?

In the AP \(310,291,272,\ldots\), what is the first term less than (75)?

Explanation opens after your attempt
Correct Answer

B. (63)

Step 1

Concept

Here (d=-19). After (82), (63) comes, so the first term less than (75) is (63).

Step 2

Why this answer is correct

The correct answer is B. (63). Here (d=-19). After (82), (63) comes, so the first term less than (75) is (63).

Step 3

Exam Tip

यहां (d=-19) है। (82) के बाद (63) आता है इसलिए (75) से छोटा पहला पद (63) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(260,245,230,\ldots\) में (-100) से छोटा पहला पद कौन-सा है?

In the AP \(260,245,230,\ldots\), which is the first term less than (-100)?

Explanation opens after your attempt
Correct Answer

C. (-115)

Step 1

Concept

Here (d=-15). After (-100), the next term is (-115), so the first smaller term is (-115).

Step 2

Why this answer is correct

The correct answer is C. (-115). Here (d=-15). After (-100), the next term is (-115), so the first smaller term is (-115).

Step 3

Exam Tip

इस AP में (d=-15) है। (-100) के बाद अगला पद (-115) है, इसलिए पहला छोटा पद (-115) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(56,73,90,\ldots\) में कितने पद (1500) से कम हैं?

In the AP \(56,73,90,\ldots\), how many terms are less than (1500)?

Explanation opens after your attempt
Correct Answer

B. (85)

Step 1

Concept

From (56+17(n-1)<1500), (17(n-1)<1444). The greatest (n=85).

Step 2

Why this answer is correct

The correct answer is B. (85). From (56+17(n-1)<1500), (17(n-1)<1444). The greatest (n=85).

Step 3

Exam Tip

(56+17(n-1)<1500) से (17(n-1)<1444)। सबसे बड़ा (n=85) है।

Open Question Page
Ask Friends

(3600) से कम (37) के धनात्मक गुणजों की समान्तर श्रेणी में अंतिम पद क्या होगा?

What will be the last term in the AP of positive multiples of (37) less than (3600)?

Explanation opens after your attempt
Correct Answer

C. (3589)

Step 1

Concept

In (37n<3600), the greatest (n=97). The last term will be \(37\times97=3589\).

Step 2

Why this answer is correct

The correct answer is C. (3589). In (37n<3600), the greatest (n=97). The last term will be \(37\times97=3589\).

Step 3

Exam Tip

(37n<3600) में सबसे बड़ा (n=97) है। अंतिम पद \(37\times97=3589\) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(221,204,187,\ldots\) में (50) से छोटा पहला पद कौन-सा है?

In the AP \(221,204,187,\ldots\), what is the first term less than (50)?

Explanation opens after your attempt
Correct Answer

B. (34)

Step 1

Concept

Here (d=-17). After (51), (34) comes, so the first term less than (50) is (34).

Step 2

Why this answer is correct

The correct answer is B. (34). Here (d=-17). After (51), (34) comes, so the first term less than (50) is (34).

Step 3

Exam Tip

यहां (d=-17) है। (51) के बाद (34) आता है, इसलिए (50) से छोटा पहला पद (34) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(210,197,184,\ldots\) में (0) से छोटा पहला पद कौन-सा है?

In the AP \(210,197,184,\ldots\), which is the first term less than (0)?

Explanation opens after your attempt
Correct Answer

A. (-11)

Step 1

Concept

Here (d=-13), and after (2), (-11) comes. Therefore the first term less than (0) is (-11).

Step 2

Why this answer is correct

The correct answer is A. (-11). Here (d=-13), and after (2), (-11) comes. Therefore the first term less than (0) is (-11).

Step 3

Exam Tip

यहां (d=-13) है और (2) के बाद (-11) आता है। इसलिए (0) से छोटा पहला पद (-11) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(42,55,68,\ldots\) में कितने पद (1000) से कम हैं?

In the AP \(42,55,68,\ldots\), how many terms are less than (1000)?

Explanation opens after your attempt
Correct Answer

C. (74)

Step 1

Concept

From (42+13(n-1)<1000), (13(n-1)<958). The greatest (n=74).

Step 2

Why this answer is correct

The correct answer is C. (74). From (42+13(n-1)<1000), (13(n-1)<958). The greatest (n=74).

Step 3

Exam Tip

(42+13(n-1)<1000) से (13(n-1)<958)। सबसे बड़ा (n=74) है।

Open Question Page
Ask Friends

(2500) से कम (29) के धनात्मक गुणजों की समान्तर श्रेणी में अंतिम पद क्या होगा?

What will be the last term in the AP of positive multiples of (29) less than (2500)?

Explanation opens after your attempt
Correct Answer

B. (2494)

Step 1

Concept

In (29n<2500), the greatest (n=86). The last term will be \(29\times86=2494\).

Step 2

Why this answer is correct

The correct answer is B. (2494). In (29n<2500), the greatest (n=86). The last term will be \(29\times86=2494\).

Step 3

Exam Tip

(29n<2500) में सबसे बड़ा (n=86) है। अंतिम पद \(29\times86=2494\) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(169,154,139,\ldots\) में (40) से छोटा पहला पद कौन-सा है?

In the AP \(169,154,139,\ldots\), what is the first term less than (40)?

Explanation opens after your attempt
Correct Answer

B. (34)

Step 1

Concept

Here (d=-15). After (49), the next term is (34), so the first term less than (40) is (34).

Step 2

Why this answer is correct

The correct answer is B. (34). Here (d=-15). After (49), the next term is (34), so the first term less than (40) is (34).

Step 3

Exam Tip

यहां (d=-15) है। (49) के बाद (34) आता है, इसलिए (40) से छोटा पहला पद (34) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(53,46,39,\ldots\) में (-100) से छोटा पहला पद कौन-सा है?

In the AP \(53,46,39,\ldots\), which is the first term less than (-100)?

Explanation opens after your attempt
Correct Answer

B. (-101)

Step 1

Concept

Here (d=-7). After (-94), the next term is (-101), so it is the first term less than (-100).

Step 2

Why this answer is correct

The correct answer is B. (-101). Here (d=-7). After (-94), the next term is (-101), so it is the first term less than (-100).

Step 3

Exam Tip

इस श्रेणी में (d=-7) है। (-94) के बाद (-101) आता है, इसलिए यही पहला पद है जो (-100) से छोटा है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(35,46,57,\ldots\) में कितने पद (600) से कम हैं?

In the AP \(35,46,57,\ldots\), how many terms are less than (600)?

Explanation opens after your attempt
Correct Answer

C. (52)

Step 1

Concept

From (35+11(n-1)<600), (11(n-1)<565). The greatest (n=52).

Step 2

Why this answer is correct

The correct answer is C. (52). From (35+11(n-1)<600), (11(n-1)<565). The greatest (n=52).

Step 3

Exam Tip

(35+11(n-1)<600) से (11(n-1)<565)। सबसे बड़ा (n=52) है।

Open Question Page
Ask Friends

(2000) से कम (23) के धनात्मक गुणजों की समान्तर श्रेणी में अंतिम पद क्या है?

What is the last term in the AP of positive multiples of (23) less than (2000)?

Explanation opens after your attempt
Correct Answer

B. (1978)

Step 1

Concept

In (23n<2000), the greatest (n=86). The last term will be \(23\times86=1978\).

Step 2

Why this answer is correct

The correct answer is B. (1978). In (23n<2000), the greatest (n=86). The last term will be \(23\times86=1978\).

Step 3

Exam Tip

(23n<2000) में सबसे बड़ा (n=86) है। अंतिम पद \(23\times86=1978\) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(143,130,117,\ldots\) में (25) से छोटा पहला पद कौन-सा है?

In the AP \(143,130,117,\ldots\), what is the first term less than (25)?

Explanation opens after your attempt
Correct Answer

A. (13)

Step 1

Concept

In this AP, (d=-13). After (26), the next term is (13), so the first term less than (25) is (13).

Step 2

Why this answer is correct

The correct answer is A. (13). In this AP, (d=-13). After (26), the next term is (13), so the first term less than (25) is (13).

Step 3

Exam Tip

इस AP में (d=-13) है। (26) के बाद (13) आता है इसलिए (25) से छोटा पहला पद (13) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(73,65,57,\ldots\) में (-80) से छोटा पहला पद कौन-सा है?

In the AP \(73,65,57,\ldots\), which is the first term less than (-80)?

Explanation opens after your attempt
Correct Answer

B. (-87)

Step 1

Concept

Here (d=-8). After (-79), the next term is (-87), so the first term less than (-80) is (-87).

Step 2

Why this answer is correct

The correct answer is B. (-87). Here (d=-8). After (-79), the next term is (-87), so the first term less than (-80) is (-87).

Step 3

Exam Tip

यहां (d=-8) है। (-79) के बाद (-87) आता है इसलिए (-80) से छोटा पहला पद (-87) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(24,33,42,\ldots\) में कितने पद (400) से कम हैं?

In the AP \(24,33,42,\ldots\), how many terms are less than (400)?

Explanation opens after your attempt
Correct Answer

C. (42)

Step 1

Concept

From (24+9(n-1)<400), (9(n-1)<376). The greatest (n=42).

Step 2

Why this answer is correct

The correct answer is C. (42). From (24+9(n-1)<400), (9(n-1)<376). The greatest (n=42).

Step 3

Exam Tip

(24+9(n-1)<400) से (9(n-1)<376)। सबसे बड़ा (n=42) है।

Open Question Page
Ask Friends

(1500) से कम (19) के धनात्मक गुणजों की समान्तर श्रेणी में अंतिम पद क्या है?

What is the last term in the AP of positive multiples of (19) less than (1500)?

Explanation opens after your attempt
Correct Answer

A. (1482)

Step 1

Concept

In (19n<1500), the greatest (n=78). The last term will be \(19\times78=1482\).

Step 2

Why this answer is correct

The correct answer is A. (1482). In (19n<1500), the greatest (n=78). The last term will be \(19\times78=1482\).

Step 3

Exam Tip

(19n<1500) में सबसे बड़ा (n=78) है। अंतिम पद \(19\times78=1482\) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(112,101,90,\ldots\) में (15) से छोटा पहला पद कौन-सा है?

In the AP \(112,101,90,\ldots\), what is the first term less than (15)?

Explanation opens after your attempt
Correct Answer

A. (13)

Step 1

Concept

In this AP, (d=-11). After (24), the next term is (13), so the first term less than (15) is (13).

Step 2

Why this answer is correct

The correct answer is A. (13). In this AP, (d=-11). After (24), the next term is (13), so the first term less than (15) is (13).

Step 3

Exam Tip

इस AP में (d=-11) है। (24) के बाद (13) आता है इसलिए (15) से छोटा पहला पद (13) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(58,51,44,\ldots\) में (-60) से छोटा पहला पद कौन-सा है?

In the AP \(58,51,44,\ldots\), which is the first term less than (-60)?

Explanation opens after your attempt
Correct Answer

B. (-68)

Step 1

Concept

(a_n=58+(n-1)(-7)=65-7n). The first term less than (-60) is (-68).

Step 2

Why this answer is correct

The correct answer is B. (-68). (a_n=58+(n-1)(-7)=65-7n). The first term less than (-60) is (-68).

Step 3

Exam Tip

(a_n=58+(n-1)(-7)=65-7n)। (-60) से छोटा पहला पद (-68) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(18,25,32,\ldots\) में कितने पद (200) से कम हैं?

In the AP \(18,25,32,\ldots\), how many terms are less than (200)?

Explanation opens after your attempt
Correct Answer

D. (27)

Step 1

Concept

From (18+7(n-1)<200), (7(n-1)<182). The greatest (n=26).

Step 2

Why this answer is correct

The correct answer is D. (27). From (18+7(n-1)<200), (7(n-1)<182). The greatest (n=26).

Step 3

Exam Tip

(18+7(n-1)<200) से (7(n-1)<182)। सबसे बड़ा (n=26) है।

Open Question Page
Ask Friends

(1000) से कम (17) के धनात्मक गुणजों की AP में अंतिम पद क्या है?

What is the last term in the AP of positive multiples of (17) less than (1000)?

Explanation opens after your attempt
Correct Answer

B. (986)

Step 1

Concept

In (17n<1000), the greatest (n=58). The last term will be \(17\times58=986\).

Step 2

Why this answer is correct

The correct answer is B. (986). In (17n<1000), the greatest (n=58). The last term will be \(17\times58=986\).

Step 3

Exam Tip

(17n<1000) में सबसे बड़ा (n=58) है। अंतिम पद \(17\times58=986\) होगा।

Open Question Page
Ask Friends

समान्तर श्रेणी \(97,88,79,\ldots\) में (20) से छोटा पहला पद कौन-सा है?

In the AP \(97,88,79,\ldots\), what is the first term less than (20)?

Explanation opens after your attempt
Correct Answer

A. (16)

Step 1

Concept

In this AP, (d=-9). After the term (25), the next term is (16), so the first term less than (20) is (16).

Step 2

Why this answer is correct

The correct answer is A. (16). In this AP, (d=-9). After the term (25), the next term is (16), so the first term less than (20) is (16).

Step 3

Exam Tip

इस AP में (d=-9)। पद (25) के बाद (16) आता है इसलिए (20) से छोटा पहला पद (16) है।

Open Question Page
Ask Friends

समान्तर श्रेणी \(41,35,29,\ldots\) का पहला पद कौन-सा होगा जो (-50) से छोटा है?

Which is the first term of the AP \(41,35,29,\ldots\) that is less than (-50)?

Explanation opens after your attempt
Correct Answer

B. (-53)

Step 1

Concept

(a_n=41+(n-1)(-6)=47-6n). The first term less than (-50) is (-53).

Step 2

Why this answer is correct

The correct answer is B. (-53). (a_n=41+(n-1)(-6)=47-6n). The first term less than (-50) is (-53).

Step 3

Exam Tip

(a_n=41+(n-1)(-6)=47-6n)। (-50) से छोटा पहला पद (-53) है।

Open Question Page
Ask Friends

(600) से कम (13) के धनात्मक गुणजों में अंतिम पद क्या है?

What is the last term among the positive multiples of (13) less than (600)?

Explanation opens after your attempt
Correct Answer

B. (598)

Step 1

Concept

In (13n<600), the greatest (n=46) so the term is \(13\times46=598\). Take the greatest integer below the limit.

Step 2

Why this answer is correct

The correct answer is B. (598). In (13n<600), the greatest (n=46) so the term is \(13\times46=598\). Take the greatest integer below the limit.

Step 3

Exam Tip

(13n<600) में सबसे बड़ा (n=46) है इसलिए पद \(13\times46=598\)। सीमा से कम सबसे बड़ा पूर्णांक लें।

Open Question Page
Ask Friends

(500) से कम (11) के धनात्मक गुणजों में अंतिम पद क्या है?

What is the last term among the positive multiples of (11) less than (500)?

Explanation opens after your attempt
Correct Answer

B. (495)

Step 1

Concept

In (11n<500), the greatest (n=45), so the term is \(11\times45=495\). Take the greatest integer below the limit.

Step 2

Why this answer is correct

The correct answer is B. (495). In (11n<500), the greatest (n=45), so the term is \(11\times45=495\). Take the greatest integer below the limit.

Step 3

Exam Tip

(11n<500) में सबसे बड़ा (n=45) है इसलिए पद \(11\times45=495\)। सीमा से कम सबसे बड़ा पूर्णांक लें।

Open Question Page
Ask Friends

अनुक्रम \(35,30,25,20,\ldots\) में प्रत्येक पद पिछले पद से कितना कम है?

In the sequence \(35,30,25,20,\ldots\), how much less is each term than the previous term?

Explanation opens after your attempt
Correct Answer

C. (5)

Step 1

Concept

Each next term is (5) less than the previous term. Its common difference will be (-5).

Step 2

Why this answer is correct

The correct answer is C. (5). Each next term is (5) less than the previous term. Its common difference will be (-5).

Step 3

Exam Tip

हर अगला पद पिछले पद से (5) कम है। इसका सार्व अंतर (-5) होगा।

Open Question Page
Ask Friends

अनुक्रम \(50,45,40,35,\ldots\) में प्रत्येक पद पिछले पद से कितना कम है?

In the sequence \(50,45,40,35,\ldots\), how much less is each term than the previous term?

Explanation opens after your attempt
Correct Answer

C. (5)

Step 1

Concept

Each next term is (5) less than the previous term. Its common difference will be (-5).

Step 2

Why this answer is correct

The correct answer is C. (5). Each next term is (5) less than the previous term. Its common difference will be (-5).

Step 3

Exam Tip

हर अगला पद पिछले पद से (5) कम है। इसका सार्व अंतर (-5) होगा।

Open Question Page
Ask Friends

एक भिन्न में अंश हर से (3) कम है। यदि अंश और हर दोनों में (2) जोड़ने पर भिन्न \(\frac{4}{5}\) हो जाती है, तो मूल भिन्न क्या है?

In a fraction, the numerator is (3) less than the denominator. If (2) is added to both numerator and denominator, the fraction becomes \(\frac{4}{5}\). What is the original fraction?

Explanation opens after your attempt
Correct Answer

B. \(\frac{10}{13}\)

Step 1

Concept

Let the denominator be (y), so the numerator is (y-3). From \(\frac{y-1}{y+2}=\frac{4}{5}\), (y=13), so the fraction is \(\frac{10}{13}\).

Step 2

Why this answer is correct

The correct answer is B. \(\frac{10}{13}\). Let the denominator be (y), so the numerator is (y-3). From \(\frac{y-1}{y+2}=\frac{4}{5}\), (y=13), so the fraction is \(\frac{10}{13}\).

Step 3

Exam Tip

मान लें हर (y) है तो अंश (y-3)। \(\frac{y-1}{y+2}=\frac{4}{5}\) से (y=13), इसलिए भिन्न \(\frac{10}{13}\) है।

Open Question Page
Ask Friends

एक भिन्न में अंश हर से (3) कम है। यदि अंश में (2) और हर में (1) जोड़ने पर भिन्न \(\frac{3}{4}\) हो जाती है, तो मूल भिन्न क्या है?

In a fraction, the numerator is (3) less than the denominator. If (2) is added to the numerator and (1) to the denominator, the fraction becomes \(\frac{3}{4}\). What is the original fraction?

Explanation opens after your attempt
Correct Answer

C. \(\frac{7}{10}\)

Step 1

Concept

Let the numerator be (x) and denominator be (y), giving (y-x=3) and \(\frac{x+2}{y+1}=\frac{3}{4}\). In exams, solve the simple linear equations after cross multiplication.

Step 2

Why this answer is correct

The correct answer is C. \(\frac{7}{10}\). Let the numerator be (x) and denominator be (y), giving (y-x=3) and \(\frac{x+2}{y+1}=\frac{3}{4}\). In exams, solve the simple linear equations after cross multiplication.

Step 3

Exam Tip

अंश (x) और हर (y) मानकर (y-x=3) और \(\frac{x+2}{y+1}=\frac{3}{4}\) बनता है। परीक्षा में क्रॉस गुणा के बाद सरल रैखिक समीकरण हल करें।

Open Question Page
Ask Friends

दो संख्याओं में पहली संख्या दूसरी की (2) गुनी से (3) कम है। दोनों का योग (42) है। छोटी संख्या क्या है?

The first number is (3) less than twice the second number. Their sum is (42). What is the smaller number?

Explanation opens after your attempt
Correct Answer

C. (15)

Step 1

Concept

Form (x=2y-3) and (x+y=42), then solve. In exams, first convert the relation statement into an equation.

Step 2

Why this answer is correct

The correct answer is C. (15). Form (x=2y-3) and (x+y=42), then solve. In exams, first convert the relation statement into an equation.

Step 3

Exam Tip

(x=2y-3) और (x+y=42) बनाकर हल करें। परीक्षा में संबंध वाले वाक्य को पहले समीकरण में बदलें।

Open Question Page
Ask Friends

कौन सा मान \( \frac{23}{6} \) से बड़ा और \( \sqrt{15} \) से छोटा है?

Which value is greater than \( \frac{23}{6} \) and less than \( \sqrt{15} \)?

Explanation opens after your attempt
Correct Answer

C. (3.86)

Step 1

Concept

\( \frac{23}{6}\approx3.833 \) and \( \sqrt{15}\approx3.873 \). Therefore (3.86) lies between them.

Step 2

Why this answer is correct

The correct answer is C. (3.86). \( \frac{23}{6}\approx3.833 \) and \( \sqrt{15}\approx3.873 \). Therefore (3.86) lies between them.

Step 3

Exam Tip

\( \frac{23}{6}\approx3.833 \) और \( \sqrt{15}\approx3.873 \) है। इसलिए (3.86) इनके बीच है।

Open Question Page
Ask Friends

कौन सा मान \( \sqrt{15}+\frac{1}{8} \) से बड़ा और (4) से छोटा है?

Which value is greater than \( \sqrt{15}+\frac{1}{8} \) and less than (4)?

Explanation opens after your attempt
Correct Answer

A. (3.95)

Step 1

Concept

\( \sqrt{15}+\frac{1}{8}\approx3.998 \), so (3.95) is not greater than it. In this case no listed value satisfies the condition.

Step 2

Why this answer is correct

The correct answer is A. (3.95). \( \sqrt{15}+\frac{1}{8}\approx3.998 \), so (3.95) is not greater than it. In this case no listed value satisfies the condition.

Step 3

Exam Tip

\( \sqrt{15}+\frac{1}{8}\approx3.998 \), इसलिए (3.95) इससे बड़ा नहीं है। ऐसी स्थिति में कोई दिया विकल्प शर्त पूरी नहीं करता।

Open Question Page
Ask Friends

कौन सा मान \( \frac{17}{5} \) से बड़ा और \( \sqrt{12} \) से छोटा है?

Which value is greater than \( \frac{17}{5} \) and less than \( \sqrt{12} \)?

Explanation opens after your attempt
Correct Answer

C. (3.45)

Step 1

Concept

\( \frac{17}{5}=3.4 \) and \( \sqrt{12}\approx3.464 \). Therefore (3.45) lies between them.

Step 2

Why this answer is correct

The correct answer is C. (3.45). \( \frac{17}{5}=3.4 \) and \( \sqrt{12}\approx3.464 \). Therefore (3.45) lies between them.

Step 3

Exam Tip

\( \frac{17}{5}=3.4 \) और \( \sqrt{12}\approx3.464 \) है। इसलिए (3.45) इनके बीच है।

Open Question Page
Ask Friends

कौन सा मान \( \sqrt{8}+\frac{1}{10} \) से बड़ा और (3) से छोटा है?

Which value is greater than \( \sqrt{8}+\frac{1}{10} \) and less than (3)?

Explanation opens after your attempt
Correct Answer

A. (2.90)

Step 1

Concept

\( \sqrt{8}+\frac{1}{10}\approx2.928 \). Therefore (2.90) does not satisfy it and no given value satisfies the condition.

Step 2

Why this answer is correct

The correct answer is A. (2.90). \( \sqrt{8}+\frac{1}{10}\approx2.928 \). Therefore (2.90) does not satisfy it and no given value satisfies the condition.

Step 3

Exam Tip

\( \sqrt{8}+\frac{1}{10}\approx2.928 \) है। इसलिए (2.90) नहीं बल्कि कोई भी दिया मान शर्त पूरी नहीं करता।

Open Question Page
Ask Friends

कौन सा मान \( -\sqrt{13} \) से छोटा और ( -3.7 ) से बड़ा है?

Which value is less than \( -\sqrt{13} \) and greater than (-3.7)?

Explanation opens after your attempt
Correct Answer

C. ( -3.65 )

Step 1

Concept

\( -\sqrt{13}\approx-3.606 \), so (-3.65) is less than it and greater than (-3.7). Be careful with direction for negative values.

Step 2

Why this answer is correct

The correct answer is C. ( -3.65 ). \( -\sqrt{13}\approx-3.606 \), so (-3.65) is less than it and greater than (-3.7). Be careful with direction for negative values.

Step 3

Exam Tip

\( -\sqrt{13}\approx-3.606 \), इसलिए (-3.65) इससे छोटा और (-3.7) से बड़ा है। ऋणात्मक मानों में दिशा सावधानी से देखें।

Open Question Page
Ask Friends

कौन सा मान \( \sqrt{11} \) से बड़ा और \( \frac{10}{3} \) से छोटा है?

Which value is greater than \( \sqrt{11} \) and less than \( \frac{10}{3} \)?

Explanation opens after your attempt
Correct Answer

C. (3.33)

Step 1

Concept

\( \sqrt{11}\approx3.316 \) and \( \frac{10}{3}\approx3.333 \), so (3.33) lies between them. Compare very close values accurately.

Step 2

Why this answer is correct

The correct answer is C. (3.33). \( \sqrt{11}\approx3.316 \) and \( \frac{10}{3}\approx3.333 \), so (3.33) lies between them. Compare very close values accurately.

Step 3

Exam Tip

\( \sqrt{11}\approx3.316 \) और \( \frac{10}{3}\approx3.333 \), इसलिए (3.33) बीच में है। बहुत पास मानों में सटीक तुलना करें।

Open Question Page
Ask Friends

कौन सा मान \( \frac{9}{4} \) से बड़ा और \( \sqrt{6} \) से छोटा है?

Which value is greater than \( \frac{9}{4} \) and less than \( \sqrt{6} \)?

Explanation opens after your attempt
Correct Answer

A. (2.4)

Step 1

Concept

\( \frac{9}{4}=2.25 \) and \( \sqrt{6}\approx2.449 \). Therefore (2.4) lies between them.

Step 2

Why this answer is correct

The correct answer is A. (2.4). \( \frac{9}{4}=2.25 \) and \( \sqrt{6}\approx2.449 \). Therefore (2.4) lies between them.

Step 3

Exam Tip

\( \frac{9}{4}=2.25 \) और \( \sqrt{6}\approx2.449 \) है। इसलिए (2.4) इनके बीच है।

Open Question Page
Ask Friends

कौन सा मान \( \sqrt{3}+\frac{1}{4} \) से छोटा और (2) से बड़ा है?

Which value is greater than \( \sqrt{3}+\frac{1}{4} \) and less than (2)?

Explanation opens after your attempt
Correct Answer

A. (1.99)

Step 1

Concept

\( \sqrt{3}+\frac{1}{4}\approx1.982 \). Therefore (1.99) is greater than it and less than (2).

Step 2

Why this answer is correct

The correct answer is A. (1.99). \( \sqrt{3}+\frac{1}{4}\approx1.982 \). Therefore (1.99) is greater than it and less than (2).

Step 3

Exam Tip

\( \sqrt{3}+\frac{1}{4}\approx1.982 \) है। इसलिए (1.99) इससे बड़ा और (2) से छोटा है।

Open Question Page
Ask Friends

कौन सा मान \( \sqrt{6} \) से बड़ा और \( \sqrt{7} \) से छोटा है?

Which value is greater than \( \sqrt{6} \) and less than \( \sqrt{7} \)?

Explanation opens after your attempt
Correct Answer

A. (2.5)

Step 1

Concept

\( \sqrt{6}\approx2.449\) and \( \sqrt{7}\approx2.646\), so (2.5) lies between them. Estimate carefully for close square roots.

Step 2

Why this answer is correct

The correct answer is A. (2.5). \( \sqrt{6}\approx2.449\) and \( \sqrt{7}\approx2.646\), so (2.5) lies between them. Estimate carefully for close square roots.

Step 3

Exam Tip

\( \sqrt{6}\approx2.449\) और \( \sqrt{7}\approx2.646\), इसलिए (2.5) बीच में है। नजदीकी मूलों में सावधानी से अनुमान लगाएँ।

Open Question Page
Ask Friends

संख्या रेखा पर कौन सी संख्या \(\sqrt{14}\) से छोटी लेकिन (3) से बड़ी है?

Which number is less than \(\sqrt{14}\) but greater than (3) on the number line?

Explanation opens after your attempt
Correct Answer

B. (3.5)

Step 1

Concept

\(\sqrt{14}\) is about (3.74), so (3.5) is greater than (3) and less than \(\sqrt{14}\). In exams, make a rough estimate of the square root.

Step 2

Why this answer is correct

The correct answer is B. (3.5). \(\sqrt{14}\) is about (3.74), so (3.5) is greater than (3) and less than \(\sqrt{14}\). In exams, make a rough estimate of the square root.

Step 3

Exam Tip

\(\sqrt{14}\) लगभग (3.74) है, इसलिए (3.5) (3) से बड़ा और \(\sqrt{14}\) से छोटा है। परीक्षा में वर्गमूल का मोटा अनुमान लगाएं।

Open Question Page
Ask Friends

यदि \(\sqrt{a}\) संख्या रेखा पर (5) से थोड़ा अधिक और (6) से कम है तो (a) किस सीमा में होगा?

If \(\sqrt{a}\) is slightly greater than (5) and less than (6) on the number line, in which range will (a) lie?

Explanation opens after your attempt
Correct Answer

C. (25<a<36)

Step 1

Concept

If \(5<\sqrt{a}<6\), then (25<a<36). Square the root bounds to get the range of (a).

Step 2

Why this answer is correct

The correct answer is C. (25<a<36). If \(5<\sqrt{a}<6\), then (25<a<36). Square the root bounds to get the range of (a).

Step 3

Exam Tip

\(5<\sqrt{a}<6\) होने पर (25<a<36) होगा। वर्गमूल की सीमा को वर्ग करके (a) की सीमा मिलती है।

Open Question Page
Ask Friends

एक व्यापारी ने (1200) रुपये में कुछ पेन खरीदे। यदि प्रति पेन कीमत (10) रुपये कम होती तो (4) पेन अधिक मिलते। मूल पेन संख्या क्या थी?

A trader bought some pens for (1200) rupees. If each pen cost (10) rupees less, he would get (4) more pens. What was the original number of pens?

Explanation opens after your attempt
Correct Answer

B. (20)

Step 1

Concept

Let the original number be (n). Then \(\frac{1200}{n}-\frac{1200}{n+4}=10\). This gives \(10n^2+40n-4800=0\), so (n=20).

Step 2

Why this answer is correct

The correct answer is B. (20). Let the original number be (n). Then \(\frac{1200}{n}-\frac{1200}{n+4}=10\). This gives \(10n^2+40n-4800=0\), so (n=20).

Step 3

Exam Tip

मूल संख्या (n) हो तो \(\frac{1200}{n}-\frac{1200}{n+4}=10\)। इससे \(10n^2+40n-4800=0\) और (n=20) है।

Open Question Page
Ask Friends

एक बस (300) किमी जाती है। यदि चाल (10) किमी प्रति घंटा कम होती तो (1) घंटा अधिक लगता। वास्तविक चाल क्या है?

A bus travels (300) km. If its speed were (10) km per hour less, it would take (1) hour more. What is the actual speed?

Explanation opens after your attempt
Correct Answer

B. (60) किमी प्रति घंटा(60) km per hour

Step 1

Concept

Let the speed be (x). Then \(\frac{300}{x-10}-\frac{300}{x}=1\). This gives \(x^2-10x-3000=0\), so (x=60).

Step 2

Why this answer is correct

The correct answer is B. (60) किमी प्रति घंटा / (60) km per hour. Let the speed be (x). Then \(\frac{300}{x-10}-\frac{300}{x}=1\). This gives \(x^2-10x-3000=0\), so (x=60).

Step 3

Exam Tip

चाल (x) हो तो \(\frac{300}{x-10}-\frac{300}{x}=1\)। इससे \(x^2-10x-3000=0\) और (x=60) मिलता है।

Open Question Page
Ask Friends

एक ट्रेन (360) किमी की दूरी तय करती है। यदि उसकी चाल (5) किमी प्रति घंटा अधिक होती तो समय (1) घंटा कम लगता। मूल चाल क्या थी?

A train covers (360) km. If its speed were (5) km per hour more, it would take (1) hour less. What was the original speed?

Explanation opens after your attempt
Correct Answer

A. (40) किमी प्रति घंटा(40) km per hour

Step 1

Concept

Let the speed be (x). Then \(\frac{360}{x}-\frac{360}{x+5}=1\). This gives \(x^2+5x-1800=0\), so (x=40).

Step 2

Why this answer is correct

The correct answer is A. (40) किमी प्रति घंटा / (40) km per hour. Let the speed be (x). Then \(\frac{360}{x}-\frac{360}{x+5}=1\). This gives \(x^2+5x-1800=0\), so (x=40).

Step 3

Exam Tip

चाल (x) हो तो \(\frac{360}{x}-\frac{360}{x+5}=1\)। इससे \(x^2+5x-1800=0\) और (x=40) मिलता है।

Open Question Page
Ask Friends

एक मैदान का क्षेत्रफल \(875 m^2\) है। उसकी लंबाई चौड़ाई के दुगुने से (5 m) कम है। चौड़ाई क्या है?

A field has area (875 m\(^2). Its length is (5\) m) less than twice its breadth. What is the breadth?

Explanation opens after your attempt
Correct Answer

B. (25 m)

Step 1

Concept

Let breadth be (x), then length is (2x-5), and (x(2x-5)=875). This gives \(2x^2-5x-875=0\), so (x=25).

Step 2

Why this answer is correct

The correct answer is B. (25 m\(). Let breadth be (x), then length is (2x-5), and (x(2x-5)=875). This gives (2x^2-5x-875=0), so (x=25).\)

Step 3

Exam Tip

चौड़ाई (x) हो, तो लंबाई (2x-5) और (x(2x-5)=875)। इससे \(2x^2-5x-875=0\), इसलिए (x=25)।

Open Question Page
Ask Friends

एक वस्तु की कीमत (₹x) है। (₹5) कम कीमत पर खरीदी जाए तो (₹300) में (3) वस्तुएँ अधिक मिलती हैं। मूल कीमत क्या है?

The price of an article is (₹x). If it is bought at (₹5) less, (3) more articles can be bought for (₹300). What is the original price?

Explanation opens after your attempt
Correct Answer

B. (₹25)

Step 1

Concept

Let original price be (x), then \(\frac{300}{x-5}-\frac{300}{x}=3\). This gives \(x^2-5x-500=0\), so (x=25).

Step 2

Why this answer is correct

The correct answer is B. (₹25). Let original price be (x), then \(\frac{300}{x-5}-\frac{300}{x}=3\). This gives \(x^2-5x-500=0\), so (x=25).

Step 3

Exam Tip

मूल कीमत (x) हो, तो \(\frac{300}{x-5}-\frac{300}{x}=3\)। इससे \(x^2-5x-500=0\), इसलिए (x=25)।

Open Question Page
Ask Friends

एक बस (240 km) यात्रा करती है। यदि चाल (20 km/h) कम होती, तो समय (1 h) अधिक लगता। बस की वास्तविक चाल क्या है?

A bus travels (240 km). If its speed were (20 km/h) less, it would take (1 h) more. What is the actual speed of the bus?

Explanation opens after your attempt
Correct Answer

C. \((80\text{ km\)h})

Step 1

Concept

Let the actual speed be (x), then \(\frac{240}{x-20}-\frac{240}{x}=1\). This gives \(x^2-20x-4800=0\), so (x=80).

Step 2

Why this answer is correct

The correct answer is C. (80 km / h\(). Let the actual speed be (x), then (\frac{240}{x-20}-\frac{240}{x}=1). This gives (x^2-20x-4800=0), so (x=80).\)

Step 3

Exam Tip

वास्तविक चाल (x) हो, तो \(\frac{240}{x-20}-\frac{240}{x}=1\)। इससे \(x^2-20x-4800=0\), इसलिए (x=80)।

Open Question Page
Ask Friends

एक आयताकार खेत की लंबाई (3) गुनी चौड़ाई से (2 m) कम है। क्षेत्रफल \(161 m^2\) है। चौड़ाई क्या है?

The length of a rectangular field is (2 m) less than three times its breadth. Its area is (161 m\(^2). What is the breadth\)?

Explanation opens after your attempt
Correct Answer

B. (7 m)

Step 1

Concept

Let breadth be (x), then length is (3x-2), and (x(3x-2)=161). This gives \(3x^2-2x-161=0\), so (x=7).

Step 2

Why this answer is correct

The correct answer is B. (7 m\(). Let breadth be (x), then length is (3x-2), and (x(3x-2)=161). This gives (3x^2-2x-161=0), so (x=7).\)

Step 3

Exam Tip

चौड़ाई (x) हो, तो लंबाई (3x-2) और (x(3x-2)=161)। इससे \(3x^2-2x-161=0\), इसलिए (x=7)।

Open Question Page
Ask Friends

एक टैंक को भरने में पाइप (A), पाइप (B) से (4 h) कम समय लेता है। दोनों मिलकर (4 h) में टैंक भरते हैं। पाइप (A) अकेले कितने समय में भरेगा?

Pipe (A) takes (4 h) less than pipe (B) to fill a tank. Together they fill it in (4 h). In how much time will pipe (A) alone fill it?

Explanation opens after your attempt
Correct Answer

A. (6 h)

Step 1

Concept

\(Let pipe (A)'s time be (x), then (\frac{1}{x}+\frac{1}{x+4}=\frac{1}{4}). This gives (x^2-4x-16=0), so the actual time is (2+2\sqrt{5}\) h), not an integer option.

Step 2

Why this answer is correct

The correct answer is A. (6 h\(). Let pipe (A)'s time be (x), then (\frac{1}{x}+\frac{1}{x+4}=\frac{1}{4}). This gives (x^2-4x-16=0), so the actual time is (2+2\sqrt{5}\) h), not an integer option.

Step 3

Exam Tip

पाइप (A) का समय (x) हो, तो \(\frac{1}{x}+\frac{1}{x+4}=\frac{1}{4}\)। इससे \(x^2-4x-16=0\), इसलिए विकल्पों में कोई पूर्णांक सही नहीं; \(वास्तविक समय (2+2\sqrt{5}\) h) है।

Open Question Page
Ask Friends

एक व्यक्ति (150 km) कार से जाता है। वापसी में चाल (25 km/h) कम होने से (1 h) अधिक लगता है। जाते समय की चाल क्या थी?

A person travels (150 km) by car. On return, the speed is (25 km/h) less and the time is (1 h) more. What was the onward speed?

Explanation opens after your attempt
Correct Answer

C. \((75\text{ km\)h})

Step 1

Concept

Let the onward speed be (x), then \(\frac{150}{x-25}-\frac{150}{x}=1\). This gives \(x^2-25x-3750=0\), so (x=75).

Step 2

Why this answer is correct

The correct answer is C. (75 km / h\(). Let the onward speed be (x), then (\frac{150}{x-25}-\frac{150}{x}=1). This gives (x^2-25x-3750=0), so (x=75).\)

Step 3

Exam Tip

जाते समय चाल (x) हो, तो \(\frac{150}{x-25}-\frac{150}{x}=1\)। इससे \(x^2-25x-3750=0\), इसलिए (x=75)।

Open Question Page
Ask Friends