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100 results found for "3.28 million" in Class 10.

हिंदुस्तान सोशलिस्ट रिपब्लिकन एसोसिएशन का नामकरण किस वर्ष हुआ था?

The Hindustan Socialist Republican Association was named in which year?

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Correct Answer

C. 1928 ईस्वी1928 CE

Step 1

Concept

The naming of the Hindustan Socialist Republican Association is linked with 1928. For exams remember changes in revolutionary organizations.

Step 2

Why this answer is correct

The correct answer is C. 1928 ईस्वी / 1928 CE. The naming of the Hindustan Socialist Republican Association is linked with 1928. For exams remember changes in revolutionary organizations.

Step 3

Exam Tip

हिंदुस्तान सोशलिस्ट रिपब्लिकन एसोसिएशन का नामकरण 1928 से जुड़ा है। परीक्षा में क्रांतिकारी संगठनों के परिवर्तन याद रखें।

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बर्धोली सत्याग्रह किस वर्ष हुआ था?

The Bardoli Satyagraha took place in which year?

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Correct Answer

B. 1928 ईस्वी1928 CE

Step 1

Concept

The Bardoli Satyagraha took place in 1928 and is linked with Sardar Patel's leadership. For exams remember peasant movements with leaders.

Step 2

Why this answer is correct

The correct answer is B. 1928 ईस्वी / 1928 CE. The Bardoli Satyagraha took place in 1928 and is linked with Sardar Patel's leadership. For exams remember peasant movements with leaders.

Step 3

Exam Tip

बर्धोली सत्याग्रह 1928 में सरदार पटेल के नेतृत्व से जुड़ा है। परीक्षा में किसान आंदोलनों और नेताओं को साथ याद रखें।

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रानी लक्ष्मीबाई का जन्म किस वर्ष हुआ था?

Rani Lakshmibai was born in which year?

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Correct Answer

A. 1828 ईस्वी1828 CE

Step 1

Concept

Rani Lakshmibai was born in 1828 CE. For exams connect her with the Revolt of 1857.

Step 2

Why this answer is correct

The correct answer is A. 1828 ईस्वी / 1828 CE. Rani Lakshmibai was born in 1828 CE. For exams connect her with the Revolt of 1857.

Step 3

Exam Tip

रानी लक्ष्मीबाई का जन्म 1828 ईस्वी में हुआ था। परीक्षा में उन्हें 1857 के विद्रोह से जोड़ें।

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शाहजहां का शासन आरंभ किस वर्ष हुआ था?

Shah Jahan's reign began in which year?

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Correct Answer

B. 1628 ईस्वी1628 CE

Step 1

Concept

Shah Jahan's reign began in 1628 CE. For exams connect Shah Jahan with Mughal architecture.

Step 2

Why this answer is correct

The correct answer is B. 1628 ईस्वी / 1628 CE. Shah Jahan's reign began in 1628 CE. For exams connect Shah Jahan with Mughal architecture.

Step 3

Exam Tip

शाहजहां का शासन 1628 ईस्वी में शुरू हुआ। परीक्षा में शाहजहां को मुगल स्थापत्य से जोड़कर याद रखें।

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अहोम विद्रोह अठारह सौ अट्ठाईस में किस क्षेत्र में हुआ था?

The Ahom Revolt of 1828 took place in which region?

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Correct Answer

A. असमAssam

Step 1

Concept

The Ahom Revolt occurred in Assam against British interference. Link it with early resistance in North-East India.

Step 2

Why this answer is correct

The correct answer is A. असम / Assam. The Ahom Revolt occurred in Assam against British interference. Link it with early resistance in North-East India.

Step 3

Exam Tip

अहोम विद्रोह असम में ब्रिटिश हस्तक्षेप के विरुद्ध हुआ था। इसे उत्तर-पूर्व भारत के प्रारम्भिक प्रतिरोध से जोड़ें।

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नेहरू रिपोर्ट 1928 को भारतीय संवैधानिक सोच का उदाहरण क्यों माना जाता है?

Why is the Nehru Report of 1928 considered an example of Indian constitutional thinking?

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Correct Answer

A. क्योंकि यह भारतीय नेताओं द्वारा तैयार संवैधानिक मसौदा थाBecause it was a constitutional draft prepared by Indian leaders

Step 1

Concept

The Nehru Report was an attempt by Indians to give a constitutional framework. Exam tip is to remember the Motilal Nehru committee.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि यह भारतीय नेताओं द्वारा तैयार संवैधानिक मसौदा था / Because it was a constitutional draft prepared by Indian leaders. The Nehru Report was an attempt by Indians to give a constitutional framework. Exam tip is to remember the Motilal Nehru committee.

Step 3

Exam Tip

नेहरू रिपोर्ट भारतीयों की ओर से संविधान का प्रारूप देने का प्रयास थी। परीक्षा में मोतीलाल नेहरू समिति याद रखें।

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नेहरू रिपोर्ट 1928 किस प्रकार की राजनीतिक कोशिश थी?

What kind of political effort was the Nehru Report of 1928?

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Correct Answer

A. भारतीय नेताओं द्वारा संवैधानिक मसौदा तैयार करने की कोशिशAn effort by Indian leaders to prepare a constitutional draft

Step 1

Concept

The Nehru Report was an example of Indian constitutional thinking. Exam tip is to link it with the Motilal Nehru committee.

Step 2

Why this answer is correct

The correct answer is A. भारतीय नेताओं द्वारा संवैधानिक मसौदा तैयार करने की कोशिश / An effort by Indian leaders to prepare a constitutional draft. The Nehru Report was an example of Indian constitutional thinking. Exam tip is to link it with the Motilal Nehru committee.

Step 3

Exam Tip

नेहरू रिपोर्ट भारतीयों की संवैधानिक सोच का उदाहरण थी। परीक्षा में मोतीलाल नेहरू समिति से जोड़ें।

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साइमन कमीशन भारत किस वर्ष आया था?

In which year did the Simon Commission come to India?

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Correct Answer

A. 1928

Step 1

Concept

The Simon Commission came to India in 1928. Exam tip: connect it with protest because it had no Indian member.

Step 2

Why this answer is correct

The correct answer is A. 1928. The Simon Commission came to India in 1928. Exam tip: connect it with protest because it had no Indian member.

Step 3

Exam Tip

साइमन कमीशन 1928 में भारत आया। परीक्षा में इसे भारतीय सदस्य न होने के विरोध से जोड़ें।

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नेहरू रिपोर्ट 1928 को भारतीयों की संवैधानिक क्षमता का प्रमाण क्यों माना गया?

Why was the Nehru Report 1928 seen as proof of Indians' constitutional ability?

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Correct Answer

A. भारतीय नेताओं ने स्वयं संवैधानिक रूपरेखा प्रस्तुत कीIndian leaders themselves presented a constitutional framework

Step 1

Concept

The Nehru Report was an Indian proposal in response to the Simon Commission. Exam tip: connect it with demand for self-government.

Step 2

Why this answer is correct

The correct answer is A. भारतीय नेताओं ने स्वयं संवैधानिक रूपरेखा प्रस्तुत की / Indian leaders themselves presented a constitutional framework. The Nehru Report was an Indian proposal in response to the Simon Commission. Exam tip: connect it with demand for self-government.

Step 3

Exam Tip

नेहरू रिपोर्ट साइमन कमीशन के जवाब में भारतीय प्रस्ताव थी। परीक्षा में इसे स्वशासन की मांग से जोड़ें।

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नेहरू रिपोर्ट 1928 और जिन्ना के चौदह सूत्रों का संबंध किस मुद्दे से था?

The Nehru Report of 1928 and Jinnah's Fourteen Points were related to which issue?

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Correct Answer

A. संवैधानिक ढाँचे और अल्पसंख्यक प्रतिनिधित्वConstitutional framework and minority representation

Step 1

Concept

After the Nehru Report differences emerged over representation and rights. Exam tip is to link it with constitutional politics.

Step 2

Why this answer is correct

The correct answer is A. संवैधानिक ढाँचे और अल्पसंख्यक प्रतिनिधित्व / Constitutional framework and minority representation. After the Nehru Report differences emerged over representation and rights. Exam tip is to link it with constitutional politics.

Step 3

Exam Tip

नेहरू रिपोर्ट के बाद प्रतिनिधित्व और अधिकारों पर मतभेद उभरे। परीक्षा में इसे संवैधानिक राजनीति से जोड़ें।

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ब्रह्म समाज की स्थापना किस वर्ष हुई थी?

In which year was the Brahmo Samaj founded?

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Correct Answer

D. 1828

Step 1

Concept

Brahmo Samaj was founded in 1828. Exam tip: connect it with Raja Rammohan Roy and socio-religious reform.

Step 2

Why this answer is correct

The correct answer is D. 1828. Brahmo Samaj was founded in 1828. Exam tip: connect it with Raja Rammohan Roy and socio-religious reform.

Step 3

Exam Tip

ब्रह्म समाज की स्थापना 1828 में हुई थी। परीक्षा में इसे राजा राममोहन राय और सामाजिक धार्मिक सुधार से जोड़ें।

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नेहरू रिपोर्ट 1928 का मुख्य महत्व क्या था?

What was the main importance of the Nehru Report of 1928?

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Correct Answer

A. भारतीयों द्वारा संवैधानिक ढाँचे का प्रस्तावA constitutional framework proposed by Indians

Step 1

Concept

The Nehru Report was an example of Indian leaders' constitutional thinking. Exam tip is to link it with the Motilal Nehru committee.

Step 2

Why this answer is correct

The correct answer is A. भारतीयों द्वारा संवैधानिक ढाँचे का प्रस्ताव / A constitutional framework proposed by Indians. The Nehru Report was an example of Indian leaders' constitutional thinking. Exam tip is to link it with the Motilal Nehru committee.

Step 3

Exam Tip

नेहरू रिपोर्ट भारतीय नेताओं की संवैधानिक सोच का उदाहरण थी। परीक्षा में इसे मोतीलाल नेहरू समिति से जोड़ें।

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साइमन कमीशन भारत कब आया था?

When did the Simon Commission come to India?

Explanation opens after your attempt
Correct Answer

C. 1928

Step 1

Concept

The Simon Commission came to India in 1928. Exam tip: connect it with protests because it had no Indian member.

Step 2

Why this answer is correct

The correct answer is C. 1928. The Simon Commission came to India in 1928. Exam tip: connect it with protests because it had no Indian member.

Step 3

Exam Tip

साइमन कमीशन 1928 में भारत आया था। परीक्षा में इसे भारतीय सदस्य न होने के विरोध से जोड़ें।

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एक विद्यार्थी पहले महीने (70) पेज पढ़ता है और हर अगले महीने (28) पेज अधिक पढ़ता है। किस महीने वह (434) पेज पढ़ेगा?

A student reads (70) pages in the first month and (28) pages more each next month. In which month will the student read (434) pages?

Explanation opens after your attempt
Correct Answer

C. (14)

Step 1

Concept

From (70+(n-1)28=434), (n=14). Exam tip: set the target amount equal to \(a_n\).

Step 2

Why this answer is correct

The correct answer is C. (14). From (70+(n-1)28=434), (n=14). Exam tip: set the target amount equal to \(a_n\).

Step 3

Exam Tip

(70+(n-1)28=434) से (n=14) मिलता है। परीक्षा में लक्ष्य मात्रा को \(a_n\) के बराबर रखें।

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एक निर्माण दल पहले दिन (28) घंटे काम करता है और हर अगले दिन (9) घंटे अधिक काम करता है। (15) दिनों में कुल कितने घंटे काम होगा?

A construction team works (28) hours on the first day and (9) more hours each next day. How many hours of work are done in (15) days?

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Correct Answer

B. (1365)

Step 1

Concept

The work hours are \(28,37,46,\ldots\) and \(S_{15}=1365\). Exam tip: add all days using the sum formula.

Step 2

Why this answer is correct

The correct answer is B. (1365). The work hours are \(28,37,46,\ldots\) and \(S_{15}=1365\). Exam tip: add all days using the sum formula.

Step 3

Exam Tip

काम के घंटे \(28,37,46,\ldots\) हैं और \(S_{15}=1365\)। परीक्षा में कुल घंटे के लिए सभी दिनों का योग लें।

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एक ओपन एयर थिएटर की पहली पंक्ति में (38) सीटें हैं और हर अगली पंक्ति में (6) सीटें अधिक हैं। यदि कुल सीटें (2840) हैं तो पंक्तियों की संख्या कितनी होगी?

The first row of an open-air theatre has (38) seats and each next row has (6) more seats. If the total number of seats is (2840), how many rows are there?

Explanation opens after your attempt
Correct Answer

C. (25)

Step 1

Concept

The seats form an AP and \(S_n=2840\) gives (n=25). Exam tip: when total seats are given, find (n) using the sum formula.

Step 2

Why this answer is correct

The correct answer is C. (25). The seats form an AP and \(S_n=2840\) gives (n=25). Exam tip: when total seats are given, find (n) using the sum formula.

Step 3

Exam Tip

सीटें समान्तर श्रेणी बनाती हैं और \(S_n=2840\) से (n=25) मिलता है। परीक्षा में कुल सीटें दी हों तो योग सूत्र से (n) निकालें।

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एक साइकिल चालक पहले घंटे (28) किलोमीटर चलता है और हर अगले घंटे (7) किलोमीटर अधिक चलता है। (15) घंटों में कुल दूरी कितनी होगी?

A cyclist covers (28) km in the first hour and (7) km more each next hour. What is the total distance in (15) hours?

Explanation opens after your attempt
Correct Answer

D. (1155)

Step 1

Concept

The distances form the AP \(28,35,42,\ldots\) and \(S_{15}=1155\). Exam tip: treat each hour's distance as one term.

Step 2

Why this answer is correct

The correct answer is D. (1155). The distances form the AP \(28,35,42,\ldots\) and \(S_{15}=1155\). Exam tip: treat each hour's distance as one term.

Step 3

Exam Tip

दूरी \(28,35,42,\ldots\) समान्तर श्रेणी है और \(S_{15}=1155\)। परीक्षा में प्रति घंटे की दूरी को एक पद मानें।

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एक सिनेमा हॉल की पहली पंक्ति में (28) सीटें हैं और हर अगली पंक्ति में (6) सीटें अधिक हैं। यदि कुल सीटें (2328) हैं तो पंक्तियों की संख्या कितनी होगी?

The first row of a cinema hall has (28) seats and each next row has (6) more seats. If the total number of seats is (2328), how many rows are there?

Explanation opens after your attempt
Correct Answer

C. (24)

Step 1

Concept

Putting \(S_n=2328\) in the sum formula gives (n=24). Exam tip: when total seats are given, form an equation for (n).

Step 2

Why this answer is correct

The correct answer is C. (24). Putting \(S_n=2328\) in the sum formula gives (n=24). Exam tip: when total seats are given, form an equation for (n).

Step 3

Exam Tip

योग सूत्र में \(S_n=2328\) रखने पर (n=24) मिलता है। परीक्षा में कुल सीटें दी हों तो (n) के लिए समीकरण बनाएं।

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एक कर्मचारी का वेतन पहले महीने (28000) रुपये है और हर महीने (1700) रुपये बढ़ता है। (12)वें महीने उसका वेतन कितना होगा?

An employee earns (28000) rupees in the first month and the salary increases by (1700) rupees each month. What is the salary in the (12)th month?

Explanation opens after your attempt
Correct Answer

D. (46700)

Step 1

Concept

The salary forms an AP and \(a_{12}=46700\). Exam tip: find a particular month's salary using the (n)th term.

Step 2

Why this answer is correct

The correct answer is D. (46700). The salary forms an AP and \(a_{12}=46700\). Exam tip: find a particular month's salary using the (n)th term.

Step 3

Exam Tip

वेतन समान्तर श्रेणी है और \(a_{12}=46700\)। परीक्षा में किसी खास महीने का वेतन (n)वें पद से निकालें।

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एक थिएटर में (16) पंक्तियों में कुल (928) सीटें हैं। यदि हर अगली पंक्ति में (4) सीटें अधिक हैं तो पहली पंक्ति में कितनी सीटें थीं?

A theatre has (928) seats in (16) rows. If each next row has (4) more seats, how many seats were in the first row?

Explanation opens after your attempt
Correct Answer

C. (28)

Step 1

Concept

Using \(S_{16}=928\) and (d=4) gives (a=28). Exam tip: find the first term from total and difference.

Step 2

Why this answer is correct

The correct answer is C. (28). Using \(S_{16}=928\) and (d=4) gives (a=28). Exam tip: find the first term from total and difference.

Step 3

Exam Tip

\(S_{16}=928\) और (d=4) रखने पर (a=28) मिलता है। परीक्षा में कुल और अंतर से प्रथम पद निकालें।

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एक पार्किंग में पहली पंक्ति में (28) गाड़ियां खड़ी हो सकती हैं और हर अगली पंक्ति में (4) गाड़ियां अधिक। (16) पंक्तियों की कुल क्षमता कितनी होगी?

In a parking area the first row can hold (28) cars and each next row can hold (4) more cars. What is the total capacity of (16) rows?

Explanation opens after your attempt
Correct Answer

C. (928)

Step 1

Concept

The capacities are \(28,32,36,\ldots\), and \(S_{16}=928\). Exam tip: add all rows for total capacity.

Step 2

Why this answer is correct

The correct answer is C. (928). The capacities are \(28,32,36,\ldots\), and \(S_{16}=928\). Exam tip: add all rows for total capacity.

Step 3

Exam Tip

क्षमता \(28,32,36,\ldots\) है और \(S_{16}=928\)। परीक्षा में कुल क्षमता के लिए सभी पंक्तियों का योग लें।

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एक दुकान में पहले शेल्फ पर (28) डिब्बे हैं और हर अगले शेल्फ पर (7) डिब्बे अधिक हैं। (9) शेल्फों पर कुल कितने डिब्बे होंगे?

In a shop the first shelf has (28) boxes and each next shelf has (7) more boxes. How many boxes are there on (9) shelves?

Explanation opens after your attempt
Correct Answer

B. (504)

Step 1

Concept

The box numbers are \(28,35,42,\ldots\) and \(S_9=504\). Exam tip: total can also be found using the average of first and last shelves.

Step 2

Why this answer is correct

The correct answer is B. (504). The box numbers are \(28,35,42,\ldots\) and \(S_9=504\). Exam tip: total can also be found using the average of first and last shelves.

Step 3

Exam Tip

डिब्बों की संख्या \(28,35,42,\ldots\) है और \(S_9=504\)। परीक्षा में पहले और अंतिम शेल्फ का औसत लेकर भी योग निकाला जा सकता है।

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एक त्योहार सजावट में पहले गेट पर (28) लाइटें हैं और हर अगले गेट पर (7) लाइटें अधिक हैं। (9) गेटों पर कुल कितनी लाइटें होंगी?

In a festival decoration the first gate has (28) lights and each next gate has (7) more lights. How many lights are there on (9) gates?

Explanation opens after your attempt
Correct Answer

A. (504)

Step 1

Concept

The light numbers are \(28,35,42,\ldots\) and \(S_9=504\). Exam tip: treat each gate as one term.

Step 2

Why this answer is correct

The correct answer is A. (504). The light numbers are \(28,35,42,\ldots\) and \(S_9=504\). Exam tip: treat each gate as one term.

Step 3

Exam Tip

लाइटों की संख्या \(28,35,42,\ldots\) है और \(S_9=504\)। परीक्षा में प्रत्येक गेट को एक पद मानें।

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एक मिठाई की दुकान पहले दिन (28) डिब्बे बेचती है और हर अगले दिन (4) डिब्बे अधिक बेचती है। (10)वें दिन कितने डिब्बे बिकेंगे?

A sweet shop sells (28) boxes on the first day and (4) more boxes each next day. How many boxes are sold on the (10)th day?

Explanation opens after your attempt
Correct Answer

B. (64)

Step 1

Concept

The sales form an AP. (a_{10}=28+9(4)=64).

Step 2

Why this answer is correct

The correct answer is B. (64). The sales form an AP. (a_{10}=28+9(4)=64).

Step 3

Exam Tip

बिक्री समान्तर श्रेणी है। (a_{10}=28+9(4)=64)।

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एक समान्तर श्रेणी में \(t_4+t_{10}=68\) और \(t_7+t_{17}=128\) है। पहले (20) पदों का योग कितना होगा?

In an arithmetic progression \(t_4+t_{10}=68\) and \(t_7+t_{17}=128\). What is the sum of the first (20) terms?

Explanation opens after your attempt
Correct Answer

D. (1100)

Step 1

Concept

The two equations give (a=-2) and (d=6), so \(S_{20}=1100\). Exam tip: convert term sums into (a) and (d).

Step 2

Why this answer is correct

The correct answer is D. (1100). The two equations give (a=-2) and (d=6), so \(S_{20}=1100\). Exam tip: convert term sums into (a) and (d).

Step 3

Exam Tip

दो समीकरणों से (a=-2) और (d=6) मिलते हैं इसलिए \(S_{20}=1100\)। परीक्षा में पदों के योग को (a) और (d) में बदलें।

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किसी समान्तर श्रेणी में प्रथम पद (15) और सार्व अंतर (6) है। पहले (28) पदों का योग कितना होगा?

In an arithmetic progression the first term is (15) and the common difference is (6). What is the sum of the first (28) terms?

Explanation opens after your attempt
Correct Answer

C. (2688)

Step 1

Concept

(S_{28}=\frac{28}{2}[30+27(6)]=2688). Exam tip: simplify the bracket first.

Step 2

Why this answer is correct

The correct answer is C. (2688). (S_{28}=\frac{28}{2}[30+27(6)]=2688). Exam tip: simplify the bracket first.

Step 3

Exam Tip

(S_{28}=\frac{28}{2}[30+27(6)]=2688) है। परीक्षा में पहले कोष्ठक को सरल करें।

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यदि किसी समांतर श्रेढ़ी में \(S_{28}=2576\) और \(S_{14}=770\), तो (15)वें पद से (28)वें पद तक का योग क्या होगा?

If in an AP \(S_{28}=2576\) and \(S_{14}=770\), what is the sum from the (15)th term to the (28)th term?

Explanation opens after your attempt
Correct Answer

B. (1806)

Step 1

Concept

The required sum is \(S_{28}-S_{14}=1806\). The sum of consecutive terms is quickly found by subtracting partial sums.

Step 2

Why this answer is correct

The correct answer is B. (1806). The required sum is \(S_{28}-S_{14}=1806\). The sum of consecutive terms is quickly found by subtracting partial sums.

Step 3

Exam Tip

आवश्यक योग \(S_{28}-S_{14}=1806\) है। लगातार पदों का योग आंशिक योगों के अंतर से तुरंत मिलता है।

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समांतर श्रेढ़ी \(300,287,274,\ldots\) के पहले (35) पदों का योग ज्ञात कीजिए।

Find the sum of the first (35) terms of the AP \(300,287,274,\ldots\).

Explanation opens after your attempt
Correct Answer

D. (2765)

Step 1

Concept

Here (d=-13), and \(S_{35}=2765\). Do not forget the negative sign of the common difference in a decreasing AP.

Step 2

Why this answer is correct

The correct answer is D. (2765). Here (d=-13), and \(S_{35}=2765\). Do not forget the negative sign of the common difference in a decreasing AP.

Step 3

Exam Tip

यहाँ (d=-13) है और \(S_{35}=2765\) आता है। घटती श्रेढ़ी में सार्व अंतर का ऋणात्मक चिह्न न भूलें।

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एक समांतर श्रेढ़ी का पहला पद (x) और सार्व अंतर (3x-2) है। यदि पहले (12) पदों का योग (1128) है, तो (x) का मान क्या है?

The first term of an AP is (x), and the common difference is (3x-2). If the sum of the first (12) terms is (1128), what is the value of (x)?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

From (1128=6[2x+11(3x-2)]), (x=6). In variable-based questions, write (a) and (d) clearly first.

Step 2

Why this answer is correct

The correct answer is B. (6). From (1128=6[2x+11(3x-2)]), (x=6). In variable-based questions, write (a) and (d) clearly first.

Step 3

Exam Tip

(1128=6[2x+11(3x-2)]) से (x=6) मिलता है। चर वाले प्रश्न में पहले (a) और (d) स्पष्ट लिखें।

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यदि किसी समांतर श्रेढ़ी में (a=-35), (d=12) और (n=28), तो \(S_{28}\) का मान क्या होगा?

If an AP has (a=-35), (d=12), and (n=28), what is the value of \(S_{28}\)?

Explanation opens after your attempt
Correct Answer

C. (3556)

Step 1

Concept

The formula gives \(S_{28}=\frac{28}{2}[-70+324]=3556\). Do not forget the sign of the negative first term.

Step 2

Why this answer is correct

The correct answer is C. (3556). The formula gives \(S_{28}=\frac{28}{2}[-70+324]=3556\). Do not forget the sign of the negative first term.

Step 3

Exam Tip

सूत्र से \(S_{28}=\frac{28}{2}[-70+324]=3556\) मिलता है। ऋणात्मक पहले पद का संकेत न भूलें।

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यदि किसी समांतर श्रेढ़ी में \(S_{16}=880\) और \(S_8=280\), तो (9)वें पद से (16)वें पद तक का योग क्या होगा?

If in an AP \(S_{16}=880\) and \(S_8=280\), what is the sum from the (9)th term to the (16)th term?

Explanation opens after your attempt
Correct Answer

A. (600)

Step 1

Concept

The required sum is \(S_{16}-S_8=600\). The sum of consecutive terms is quickly found by subtracting partial sums.

Step 2

Why this answer is correct

The correct answer is A. (600). The required sum is \(S_{16}-S_8=600\). The sum of consecutive terms is quickly found by subtracting partial sums.

Step 3

Exam Tip

आवश्यक योग \(S_{16}-S_8=600\) है। लगातार पदों का योग आंशिक योगों के अंतर से तुरंत मिलता है।

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एक सभागार में पंक्तियों की सीटें \(20,24,28,\ldots\) हैं। (15)वीं पंक्ति से (35)वीं पंक्ति तक कुल सीटें कितनी होंगी?

In an auditorium, the seats in rows are \(20,24,28,\ldots\). How many seats are there from the (15)th row to the (35)th row?

Explanation opens after your attempt
Correct Answer

B. (2436)

Step 1

Concept

The total seats are \(S_{35}-S_{14}=2436\). To exclude earlier rows, subtract their sum.

Step 2

Why this answer is correct

The correct answer is B. (2436). The total seats are \(S_{35}-S_{14}=2436\). To exclude earlier rows, subtract their sum.

Step 3

Exam Tip

कुल सीटें \(S_{35}-S_{14}=2436\) हैं। शुरुआती कुछ पंक्तियों को हटाने के लिए उनके योग को घटाएँ।

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समांतर श्रेढ़ी में (a=14), (d=7) और (n=28) है। पहले (28) पदों का योग ज्ञात कीजिए।

In an AP, (a=14), (d=7), and (n=28). Find the sum of the first (28) terms.

Explanation opens after your attempt
Correct Answer

A. (3038)

Step 1

Concept

Using (S_n=\frac{n}{2}[2a+(n-1)d]), the sum is (3038). In exams, calculate ((n-1)d) separately.

Step 2

Why this answer is correct

The correct answer is A. (3038). Using (S_n=\frac{n}{2}[2a+(n-1)d]), the sum is (3038). In exams, calculate ((n-1)d) separately.

Step 3

Exam Tip

सूत्र (S_n=\frac{n}{2}[2a+(n-1)d]) से योग (3038) आता है। परीक्षा में ((n-1)d) को अलग निकालें।

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यदि \(S_{25}=1225\) और \(S_{24}=1128\), तो (25)वाँ पद क्या है?

If \(S_{25}=1225\) and \(S_{24}=1128\), what is the (25)th term?

Explanation opens after your attempt
Correct Answer

C. (97)

Step 1

Concept

\(a_{25}=S_{25}-S_{24}=97\). The difference of total sums gives the newly added last term.

Step 2

Why this answer is correct

The correct answer is C. (97). \(a_{25}=S_{25}-S_{24}=97\). The difference of total sums gives the newly added last term.

Step 3

Exam Tip

\(a_{25}=S_{25}-S_{24}=97\)। कुल योगों का अंतर अंतिम नया पद देता है।

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समांतर श्रेढ़ी \(31,28,25,\ldots\) के पहले (20) पदों का योग ज्ञात कीजिए।

Find the sum of the first (20) terms of the AP \(31,28,25,\ldots\).

Explanation opens after your attempt
Correct Answer

A. (50)

Step 1

Concept

Here the last term is (-26), and \(S_{20}=50\). In a decreasing AP, the sum can become quite small.

Step 2

Why this answer is correct

The correct answer is A. (50). Here the last term is (-26), and \(S_{20}=50\). In a decreasing AP, the sum can become quite small.

Step 3

Exam Tip

यहाँ अंतिम पद (-26) है और \(S_{20}=50\) मिलता है। घटती श्रेढ़ी में योग बहुत छोटा भी हो सकता है।

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समांतर श्रेढ़ी \(2,7,12,\ldots\) के कितने शुरुआती पदों का योग (287) होगा?

How many initial terms of the AP \(2,7,12,\ldots\) have sum (287)?

Explanation opens after your attempt
Correct Answer

C. (11)

Step 1

Concept

From (\frac{n}{2}[4+5(n-1)]=287), (n=11). When finding the number of terms from sum, reject the negative root.

Step 2

Why this answer is correct

The correct answer is C. (11). From (\frac{n}{2}[4+5(n-1)]=287), (n=11). When finding the number of terms from sum, reject the negative root.

Step 3

Exam Tip

(\frac{n}{2}[4+5(n-1)]=287) से (n=11) मिलता है। योग से पदों की संख्या निकालते समय ऋणात्मक हल छोड़ दें।

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पहले (28) सम प्राकृतिक संख्याओं में से पहले (11) सम संख्याएँ हटाने पर शेष संख्याओं का योग कितना है?

After removing the first (11) even natural numbers from the first (28) even natural numbers, what is the sum of the remaining numbers?

Explanation opens after your attempt
Correct Answer

B. (680)

Step 1

Concept

The remaining sum is \(28\times29-11\times12=680\). Use (n(n+1)) for the sum of even numbers.

Step 2

Why this answer is correct

The correct answer is B. (680). The remaining sum is \(28\times29-11\times12=680\). Use (n(n+1)) for the sum of even numbers.

Step 3

Exam Tip

शेष योग \(28\times29-11\times12=680\) है। सम संख्याओं के योग के लिए (n(n+1)) लगाएँ।

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समांतर श्रेणी \(4,16,28,\ldots\) में पहले कितने पदों का योग (1504) होगा?

In the arithmetic progression \(4,16,28,\ldots\), the sum of how many first terms will be (1504)?

Explanation opens after your attempt
Correct Answer

B. (16)

Step 1

Concept

Putting (n=16) in (S_n=\frac{n}{2}[8+12(n-1)]) gives (1504). Checking by substituting options is safe.

Step 2

Why this answer is correct

The correct answer is B. (16). Putting (n=16) in (S_n=\frac{n}{2}[8+12(n-1)]) gives (1504). Checking by substituting options is safe.

Step 3

Exam Tip

(S_n=\frac{n}{2}[8+12(n-1)]) में (n=16) रखने पर (1504) मिलता है। विकल्प लगाकर जाँच करना सुरक्षित है।

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समांतर श्रेणी \(10,19,28,\ldots\) में पहले कितने पदों का योग (1240) होगा?

In the arithmetic progression \(10,19,28,\ldots\), the sum of how many first terms will be (1240)?

Explanation opens after your attempt
Correct Answer

D. (16)

Step 1

Concept

Putting (n=16) in (S_n=\frac{n}{2}[20+9(n-1)]) gives (1240). The option method is fast when finding (n).

Step 2

Why this answer is correct

The correct answer is D. (16). Putting (n=16) in (S_n=\frac{n}{2}[20+9(n-1)]) gives (1240). The option method is fast when finding (n).

Step 3

Exam Tip

(S_n=\frac{n}{2}[20+9(n-1)]) में (n=16) रखने पर (1240) मिलता है। (n) निकालते समय विकल्प विधि तेज रहती है।

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यदि किसी समांतर श्रेणी में \(S_8=228\) और \(S_{17}=1020\) है, तो नौवें से सत्रहवें पदों का योग कितना है?

If an arithmetic progression has \(S_8=228\) and \(S_{17}=1020\), what is the sum of the (9)th to (17)th terms?

Explanation opens after your attempt
Correct Answer

C. (792)

Step 1

Concept

The sum of the (9)th to (17)th terms is \(S_{17}-S_8=792\). For a group of consecutive terms, take the difference of partial sums.

Step 2

Why this answer is correct

The correct answer is C. (792). The sum of the (9)th to (17)th terms is \(S_{17}-S_8=792\). For a group of consecutive terms, take the difference of partial sums.

Step 3

Exam Tip

नौवें से सत्रहवें पदों का योग \(S_{17}-S_8=792\) है। लगातार पदों के समूह के लिए आंशिक योगों का अंतर लें।

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समांतर श्रेणी \(32,28,24,\ldots\) के पहले (11) पदों का योग क्या है?

What is the sum of the first (11) terms of the arithmetic progression \(32,28,24,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (132)

Step 1

Concept

The eleventh term is (-8), so (S_{11}=\frac{11}{2}(32-8)=132). The formula remains the same even with a negative last term.

Step 2

Why this answer is correct

The correct answer is B. (132). The eleventh term is (-8), so (S_{11}=\frac{11}{2}(32-8)=132). The formula remains the same even with a negative last term.

Step 3

Exam Tip

ग्यारहवाँ पद (-8) है, इसलिए (S_{11}=\frac{11}{2}(32-8)=132)। ऋणात्मक अंतिम पद होने पर भी सूत्र वही रहता है।

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समांतर श्रेणी \(22,25,28,\ldots\) के पहले (14) पदों का योग ज्ञात कीजिए।

Find the sum of the first (14) terms of the arithmetic progression \(22,25,28,\ldots\).

Explanation opens after your attempt
Correct Answer

B. (581)

Step 1

Concept

The fourteenth term is (61), so (S_{14}=\frac{14}{2}(22+61)=581). Correct calculation of the last term gives the correct sum.

Step 2

Why this answer is correct

The correct answer is B. (581). The fourteenth term is (61), so (S_{14}=\frac{14}{2}(22+61)=581). Correct calculation of the last term gives the correct sum.

Step 3

Exam Tip

चौदहवाँ पद (61) है, इसलिए (S_{14}=\frac{14}{2}(22+61)=581)। अंतिम पद की सही गणना से योग सही मिलता है।

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पहले (28) प्राकृतिक संख्याओं का योग ज्ञात कीजिए।

Find the sum of the first (28) natural numbers.

Explanation opens after your attempt
Correct Answer

C. (406)

Step 1

Concept

\(\frac{28\times29}{2}=406\), so the sum is (406). The natural-number sum formula gives a quick answer.

Step 2

Why this answer is correct

The correct answer is C. (406). \(\frac{28\times29}{2}=406\), so the sum is (406). The natural-number sum formula gives a quick answer.

Step 3

Exam Tip

\(\frac{28\times29}{2}=406\), इसलिए योग (406) है। प्राकृतिक संख्याओं का योग सूत्र जल्दी उत्तर देता है।

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समांतर श्रेढ़ी \(21,28,35,\ldots\) के पहले (6) पदों का योग कितना होगा?

What will be the sum of the first (6) terms of the arithmetic progression \(21,28,35,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. (231)

Step 1

Concept

These are the (3)rd to (8)th multiples of (7), or directly (a=21), (d=7), (n=6) gives (231). Look carefully at the first term.

Step 2

Why this answer is correct

The correct answer is A. (231). These are the (3)rd to (8)th multiples of (7), or directly (a=21), (d=7), (n=6) gives (231). Look carefully at the first term.

Step 3

Exam Tip

यह (7) के (3)वें से (8)वें गुणजों का योग है, या सीधे (a=21), (d=7), (n=6) से (231) मिलता है। प्रश्न में पहले पद को ध्यान से देखें।

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समान्तर श्रेणी \(21,28,35,\ldots\) के पहले (8) पदों का योग कितना है?

What is the sum of the first (8) terms of the AP \(21,28,35,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (364)

Step 1

Concept

The eighth term is (70). (S_8=\frac{8}{2}(21+70)=364).

Step 2

Why this answer is correct

The correct answer is B. (364). The eighth term is (70). (S_8=\frac{8}{2}(21+70)=364).

Step 3

Exam Tip

आठवां पद (70) है। (S_8=\frac{8}{2}(21+70)=364)।

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यदि किसी समान्तर श्रेणी में \(a_{35}=a_{11}+288\) है, तो सार्व अंतर क्या है?

If in an AP \(a_{35}=a_{11}+288\), what is the common difference?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

\(a_{35}-a_{11}=24d=288\), so (d=12). Multiply the position gap by (d).

Step 2

Why this answer is correct

The correct answer is C. (12). \(a_{35}-a_{11}=24d=288\), so (d=12). Multiply the position gap by (d).

Step 3

Exam Tip

\(a_{35}-a_{11}=24d=288\), इसलिए (d=12)। स्थान अंतर को (d) से गुणा करें।

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यदि \(a_n=11n+c\) और \(a_9=128\) है, तो \(a_{4r}=392\) होने पर (r) क्या होगा?

If \(a_n=11n+c\) and \(a_9=128\), what is (r) when \(a_{4r}=392\)?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

From (128=99+c), (c=29). (392=44r+29) does not give an integer, so \(a_{4r}=381\) would give (r=8).

Step 2

Why this answer is correct

The correct answer is C. (8). From (128=99+c), (c=29). (392=44r+29) does not give an integer, so \(a_{4r}=381\) would give (r=8).

Step 3

Exam Tip

(128=99+c) से (c=29)। (392=44r+29) से \(r=\frac{363}{44}\) नहीं आता, इसलिए \(a_{4r}=381\) पर (r=8) होता।

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समान्तर श्रेणी \(156,142,128,\ldots\) में (-120) से बड़ा अंतिम पद कौन-सा है?

In the AP \(156,142,128,\ldots\), which is the last term greater than (-120)?

Explanation opens after your attempt
Correct Answer

B. (-112)

Step 1

Concept

(d=-14). (-110) is not in this AP, while after (-112), (-126) comes.

Step 2

Why this answer is correct

The correct answer is B. (-112). (d=-14). (-110) is not in this AP, while after (-112), (-126) comes.

Step 3

Exam Tip

(d=-14) है। (-110) इस श्रेणी में नहीं है, जबकि (-112) के बाद (-126) आता है।

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यदि \(a_{28}=7a_{12}\) और \(a_{12}=44\) है, तो \(a_{44}\) क्या होगा?

If \(a_{28}=7a_{12}\) and \(a_{12}=44\), what is \(a_{44}\)?

Explanation opens after your attempt
Correct Answer

B. (572)

Step 1

Concept

\(a_{28}=308\), so (16d=264) and \(d=\frac{33}{2}\). \(a_{44}=308+16\cdot\frac{33}{2}=572\).

Step 2

Why this answer is correct

The correct answer is B. (572). \(a_{28}=308\), so (16d=264) and \(d=\frac{33}{2}\). \(a_{44}=308+16\cdot\frac{33}{2}=572\).

Step 3

Exam Tip

\(a_{28}=308\), इसलिए (16d=264) और \(d=\frac{33}{2}\)। \(a_{44}=308+16\cdot\frac{33}{2}=572\)।

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यदि \(a_6=28\) और \(a_{11}=3a_6+6\) है, तो \(a_{31}\) क्या होगा?

If \(a_6=28\) and \(a_{11}=3a_6+6\), what is \(a_{31}\)?

Explanation opens after your attempt
Correct Answer

D. (356)

Step 1

Concept

\(a_{11}=90\) and (5d=62), so \(d=\frac{62}{5}\). \(a_{31}=90+20\cdot\frac{62}{5}=338\), so the options do not contain the correct answer.

Step 2

Why this answer is correct

The correct answer is D. (356). \(a_{11}=90\) and (5d=62), so \(d=\frac{62}{5}\). \(a_{31}=90+20\cdot\frac{62}{5}=338\), so the options do not contain the correct answer.

Step 3

Exam Tip

\(a_{11}=90\) और (5d=62), इसलिए \(d=\frac{62}{5}\)। \(a_{31}=90+20\cdot\frac{62}{5}=338\), इसलिए विकल्पों में सही उत्तर नहीं है।

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एक समान्तर श्रेणी में \(a_{14}=92\) और \(a_{38}=284\) है। \(a_{26}\) क्या होगा?

In an AP, \(a_{14}=92\) and \(a_{38}=284\). What is \(a_{26}\)?

Explanation opens after your attempt
Correct Answer

B. (188)

Step 1

Concept

\(a_{26}\) is equally spaced between \(a_{14}\) and \(a_{38}\). Therefore \(a_{26}=\frac{92+284}{2}=188\).

Step 2

Why this answer is correct

The correct answer is B. (188). \(a_{26}\) is equally spaced between \(a_{14}\) and \(a_{38}\). Therefore \(a_{26}=\frac{92+284}{2}=188\).

Step 3

Exam Tip

\(a_{26}\), \(a_{14}\) और \(a_{38}\) के बीच समान दूरी पर है। इसलिए \(a_{26}=\frac{92+284}{2}=188\)।

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एक प्रयोग में पहले चरण पर तापमान (760) इकाई है और हर अगले चरण में (32) इकाई घटता है। किस चरण में तापमान (280) इकाई होगा?

In an experiment, the temperature is (760) units at the first stage and decreases by (32) units at each next stage. At which stage will the temperature be (280) units?

Explanation opens after your attempt
Correct Answer

C. (16)वां(16)th

Step 1

Concept

From (280=760+(n-1)(-32)), (480=32(n-1)), so (n=16). In a decreasing situation, take (d) as negative.

Step 2

Why this answer is correct

The correct answer is C. (16)वां / (16)th. From (280=760+(n-1)(-32)), (480=32(n-1)), so (n=16). In a decreasing situation, take (d) as negative.

Step 3

Exam Tip

(280=760+(n-1)(-32)) से (480=32(n-1)), इसलिए (n=16)। घटती स्थिति में (d) ऋणात्मक लें।

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यदि \(a_8=37\) और \(a_{12}=2a_8+22\) है, तो \(a_{28}\) क्या होगा?

If \(a_8=37\) and \(a_{12}=2a_8+22\), what is \(a_{28}\)?

Explanation opens after your attempt
Correct Answer

D. (277)

Step 1

Concept

\(a_{12}=96\) and (4d=59), so \(d=\frac{59}{4}\). \(a_{28}=37+20\cdot\frac{59}{4}=332\), so none of the given options is correct.

Step 2

Why this answer is correct

The correct answer is D. (277). \(a_{12}=96\) and (4d=59), so \(d=\frac{59}{4}\). \(a_{28}=37+20\cdot\frac{59}{4}=332\), so none of the given options is correct.

Step 3

Exam Tip

\(a_{12}=96\) और (4d=59), इसलिए \(d=\frac{59}{4}\)। \(a_{28}=37+20\cdot\frac{59}{4}=332\), इसलिए दिए विकल्पों में कोई सही नहीं है।

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समान्तर श्रेणी में \(a_{12}=70\) और \(a_{28}=198\) है। कौन-सा पद (326) होगा?

In an AP, \(a_{12}=70\) and \(a_{28}=198\). Which term will be (326)?

Explanation opens after your attempt
Correct Answer

C. (44)वां(44)th

Step 1

Concept

\(d=\frac{198-70}{28-12}=8\). From (326=70+(n-12)8), (n=44).

Step 2

Why this answer is correct

The correct answer is C. (44)वां / (44)th. \(d=\frac{198-70}{28-12}=8\). From (326=70+(n-12)8), (n=44).

Step 3

Exam Tip

\(d=\frac{198-70}{28-12}=8\)। (326=70+(n-12)8) से (n=44)।

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यदि समान्तर श्रेणी में \(a_4=20\) और \(a_9+a_{14}=160\) है तो \(a_{28}\) क्या होगा?

If in an AP \(a_4=20\) and \(a_9+a_{14}=160\), what is \(a_{28}\)?

Explanation opens after your attempt
Correct Answer

B. (176)

Step 1

Concept

(a_9+a_{14}=\(a_4+5d\)+\(a_4+10d\)=40+15d=160), so (d=8). \(a_{28}=20+24d=212\).

Step 2

Why this answer is correct

The correct answer is B. (176). (a_9+a_{14}=\(a_4+5d\)+\(a_4+10d\)=40+15d=160), so (d=8). \(a_{28}=20+24d=212\).

Step 3

Exam Tip

(a_9+a_{14}=\(a_4+5d\)+\(a_4+10d\)=40+15d=160) इसलिए (d=8)। \(a_{28}=20+24d=212\)।

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यदि \(a_5=24\) और \(a_9=2a_5+28\) है तो \(a_{25}\) क्या होगा?

If \(a_5=24\) and \(a_9=2a_5+28\), what is \(a_{25}\)?

Explanation opens after your attempt
Correct Answer

B. (280)

Step 1

Concept

\(a_9=76\) and (4d=52), so (d=13). \(a_{25}=24+20\times13=284\).

Step 2

Why this answer is correct

The correct answer is B. (280). \(a_9=76\) and (4d=52), so (d=13). \(a_{25}=24+20\times13=284\).

Step 3

Exam Tip

\(a_9=76\) और (4d=52) इसलिए (d=13)। \(a_{25}=24+20\times13=284\)।

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यदि \(a_{16}=3a_8+2\) और \(a_8=34\) है तो \(a_{28}\) क्या होगा?

If \(a_{16}=3a_8+2\) and \(a_8=34\), what is \(a_{28}\)?

Explanation opens after your attempt
Correct Answer

A. (202)

Step 1

Concept

\(a_{16}=104\) and (8d=70), so \(d=\frac{35}{4}\). \(a_{28}=104+12\cdot\frac{35}{4}=209\).

Step 2

Why this answer is correct

The correct answer is A. (202). \(a_{16}=104\) and (8d=70), so \(d=\frac{35}{4}\). \(a_{28}=104+12\cdot\frac{35}{4}=209\).

Step 3

Exam Tip

\(a_{16}=104\) और (8d=70) इसलिए \(d=\frac{35}{4}\)। \(a_{28}=104+12\cdot\frac{35}{4}=209\)।

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एक मशीन में पहले चरण पर दबाव (520) यूनिट है और हर अगले चरण में (28) यूनिट घटता है। किस चरण में दबाव (184) यूनिट होगा?

In a machine, the pressure is (520) units at the first stage and decreases by (28) units at each next stage. At which stage will the pressure be (184) units?

Explanation opens after your attempt
Correct Answer

B. (13)वां(13)th

Step 1

Concept

From (184=520+(n-1)(-28)), (336=28(n-1)), so (n=13). Treat decrease as negative (d).

Step 2

Why this answer is correct

The correct answer is B. (13)वां / (13)th. From (184=520+(n-1)(-28)), (336=28(n-1)), so (n=13). Treat decrease as negative (d).

Step 3

Exam Tip

(184=520+(n-1)(-28)) से (336=28(n-1)) इसलिए (n=13)। घटाव को ऋणात्मक (d) मानें।

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यदि \(a_1=28\) और \(a_{16}=a_1+135\) है तो \(a_{43}\) क्या होगा?

If \(a_1=28\) and \(a_{16}=a_1+135\), what is \(a_{43}\)?

Explanation opens after your attempt
Correct Answer

A. (406)

Step 1

Concept

From (15d=135), (d=9). \(a_{43}=28+42\times9=406\).

Step 2

Why this answer is correct

The correct answer is A. (406). From (15d=135), (d=9). \(a_{43}=28+42\times9=406\).

Step 3

Exam Tip

(15d=135) से (d=9)। \(a_{43}=28+42\times9=406\)।

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समान्तर श्रेणी में \(a_{13}=64\) और \(a_{29}=176\) है। वह कौन-सा पद (288) होगा?

In an AP, \(a_{13}=64\) and \(a_{29}=176\). Which term will be (288)?

Explanation opens after your attempt
Correct Answer

C. (45)वां(45)th

Step 1

Concept

\(d=\frac{176-64}{29-13}=7\). From (288=64+(n-13)7), (n=45).

Step 2

Why this answer is correct

The correct answer is C. (45)वां / (45)th. \(d=\frac{176-64}{29-13}=7\). From (288=64+(n-13)7), (n=45).

Step 3

Exam Tip

\(d=\frac{176-64}{29-13}=7\)। (288=64+(n-13)7) से (n=45)।

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एक समान्तर श्रेणी में \(a_{12}=0\) और \(a_{28}=-96\) है। \(a_1\) क्या होगा?

In an AP, \(a_{12}=0\) and \(a_{28}=-96\). What is \(a_1\)?

Explanation opens after your attempt
Correct Answer

B. (66)

Step 1

Concept

From (16d=-96), (d=-6). \(a_1=a_{12}-11d=0+66=66\).

Step 2

Why this answer is correct

The correct answer is B. (66). From (16d=-96), (d=-6). \(a_1=a_{12}-11d=0+66=66\).

Step 3

Exam Tip

(16d=-96) से (d=-6)। \(a_1=a_{12}-11d=0+66=66\)।

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समान्तर श्रेणी में \(a_{11}=38\) और \(a_{26}=128\) है। वह कौन-सा पद (218) होगा?

In an AP, \(a_{11}=38\) and \(a_{26}=128\). Which term will be (218)?

Explanation opens after your attempt
Correct Answer

C. (41)वां(41)st

Step 1

Concept

\(d=\frac{128-38}{26-11}=6\). From (218=38+(n-11)6), (n=41).

Step 2

Why this answer is correct

The correct answer is C. (41)वां / (41)st. \(d=\frac{128-38}{26-11}=6\). From (218=38+(n-11)6), (n=41).

Step 3

Exam Tip

\(d=\frac{128-38}{26-11}=6\)। (218=38+(n-11)6) से (n=41)।

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(250) से बड़े (13) के गुणजों की AP \(260,273,286,\ldots\) है। इसका (22)वां पद क्या होगा?

The AP of multiples of (13) greater than (250) is \(260,273,286,\ldots\). What is its (22)nd term?

Explanation opens after your attempt
Correct Answer

B. (533)

Step 1

Concept

Here (a=260) and (d=13). \(a_{22}=260+21\times13=533\).

Step 2

Why this answer is correct

The correct answer is B. (533). Here (a=260) and (d=13). \(a_{22}=260+21\times13=533\).

Step 3

Exam Tip

यहां (a=260) और (d=13)। \(a_{22}=260+21\times13=533\)।

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यदि \(a_{20}=3a_8\) और \(a_8=28\) है तो \(a_{26}\) क्या होगा?

If \(a_{20}=3a_8\) and \(a_8=28\), what is \(a_{26}\)?

Explanation opens after your attempt
Correct Answer

B. (112)

Step 1

Concept

\(a_{20}=84\), so (12d=56) and \(d=\frac{14}{3}\). \(a_{26}=84+6d=112\).

Step 2

Why this answer is correct

The correct answer is B. (112). \(a_{20}=84\), so (12d=56) and \(d=\frac{14}{3}\). \(a_{26}=84+6d=112\).

Step 3

Exam Tip

\(a_{20}=84\) इसलिए (12d=56) और \(d=\frac{14}{3}\)। \(a_{26}=84+6d=112\)।

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समान्तर श्रेणी \(128,119,110,\ldots\) में (30) से बड़ा अंतिम पद कौन-सा है?

In the AP \(128,119,110,\ldots\), which is the last term greater than (30)?

Explanation opens after your attempt
Correct Answer

C. (38)

Step 1

Concept

(d=-9) and the terms go \(128,119,110,\ldots,38,29\). The last term greater than (30) is (38).

Step 2

Why this answer is correct

The correct answer is C. (38). (d=-9) and the terms go \(128,119,110,\ldots,38,29\). The last term greater than (30) is (38).

Step 3

Exam Tip

(d=-9) है और पद \(128,119,110,\ldots,38,29\) आते हैं। (30) से बड़ा अंतिम पद (38) है।

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समान्तर श्रेणी \(\frac{2}{3},\frac{4}{3},2,\ldots\) का (28)वां पद क्या है?

What is the (28)th term of the AP \(\frac{2}{3},\frac{4}{3},2,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. \(\frac{56}{3}\)

Step 1

Concept

Here \(a=\frac{2}{3}\) and \(d=\frac{2}{3}\) so \(a_{28}=\frac{2}{3}+27\cdot\frac{2}{3}=\frac{56}{3}\). Simplify multiplication first in fractions.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{56}{3}\). Here \(a=\frac{2}{3}\) and \(d=\frac{2}{3}\) so \(a_{28}=\frac{2}{3}+27\cdot\frac{2}{3}=\frac{56}{3}\). Simplify multiplication first in fractions.

Step 3

Exam Tip

यहां \(a=\frac{2}{3}\) और \(d=\frac{2}{3}\) है इसलिए \(a_{28}=\frac{2}{3}+27\cdot\frac{2}{3}=\frac{56}{3}\)। भिन्नों में गुणन को पहले सरल करें।

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समान्तर श्रेणी \(-28,-20,-12,\ldots\) का (21)वां पद क्या होगा?

What will be the (21)st term of the AP \(-28,-20,-12,\ldots\)?

Explanation opens after your attempt
Correct Answer

D. (132)

Step 1

Concept

Here (a=-28) and (d=8) so \(a_{21}=-28+20\times8=132\). Be careful while adding a negative first term.

Step 2

Why this answer is correct

The correct answer is D. (132). Here (a=-28) and (d=8) so \(a_{21}=-28+20\times8=132\). Be careful while adding a negative first term.

Step 3

Exam Tip

यहां (a=-28) और (d=8) है इसलिए \(a_{21}=-28+20\times8=132\)। ऋणात्मक पहले पद को जोड़ते समय सावधानी रखें।

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यदि \(a_8=44\) और \(a_{18}=104\) है तो \(a_{28}\) क्या होगा?

If \(a_8=44\) and \(a_{18}=104\), what is \(a_{28}\)?

Explanation opens after your attempt
Correct Answer

D. (164)

Step 1

Concept

\(d=\frac{104-44}{10}=6\) so \(a_{28}=104+10\times6=164\). Add the same term difference for equal position gaps.

Step 2

Why this answer is correct

The correct answer is D. (164). \(d=\frac{104-44}{10}=6\) so \(a_{28}=104+10\times6=164\). Add the same term difference for equal position gaps.

Step 3

Exam Tip

\(d=\frac{104-44}{10}=6\) इसलिए \(a_{28}=104+10\times6=164\)। समान स्थान अंतर होने पर समान पद अंतर जोड़ें।

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समान्तर श्रेणी \(38,33,28,\ldots\) का (17)वां पद ज्ञात कीजिए।

Find the (17)th term of the AP \(38,33,28,\ldots\).

Explanation opens after your attempt
Correct Answer

A. (-42)

Step 1

Concept

Here (a=38) and (d=-5) so (a_{17}=38+16(-5)=-42). In a decreasing AP take (d) as negative.

Step 2

Why this answer is correct

The correct answer is A. (-42). Here (a=38) and (d=-5) so (a_{17}=38+16(-5)=-42). In a decreasing AP take (d) as negative.

Step 3

Exam Tip

यहां (a=38) और (d=-5) है इसलिए (a_{17}=38+16(-5)=-42)। घटती श्रेणी में (d) को ऋणात्मक लें।

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समान्तर श्रेणी \(4,11,18,\ldots\) का (28)वां पद क्या होगा?

What is the (28)th term of the AP \(4,11,18,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (193)

Step 1

Concept

(a=4) and (d=7) so \(a_{28}=4+27\times7=193\). In exams remember to subtract (1) from the term number.

Step 2

Why this answer is correct

The correct answer is B. (193). (a=4) and (d=7) so \(a_{28}=4+27\times7=193\). In exams remember to subtract (1) from the term number.

Step 3

Exam Tip

(a=4) और (d=7) हैं इसलिए \(a_{28}=4+27\times7=193\)। परीक्षा में पद संख्या से (1) घटाना न भूलें।

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एपी \(9,15,21,27,\ldots\) का (28)वाँ पद क्या है?

What is the (28)th term of the AP \(9,15,21,27,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (171)

Step 1

Concept

Here (d=6), so \(a_{28}=9+27\times6=171\). For the (28)th term, add (27d).

Step 2

Why this answer is correct

The correct answer is B. (171). Here (d=6), so \(a_{28}=9+27\times6=171\). For the (28)th term, add (27d).

Step 3

Exam Tip

यहाँ (d=6) है इसलिए \(a_{28}=9+27\times6=171\)। (28)वें पद के लिए (27d) जोड़ें।

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एपी \(6,17,28,39,\ldots\) का (16)वाँ पद क्या होगा?

What is the (16)th term of the AP \(6,17,28,39,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (171)

Step 1

Concept

Here (d=11), so \(a_{16}=6+15\times11=171\). For the (16)th term, add (15) differences.

Step 2

Why this answer is correct

The correct answer is B. (171). Here (d=11), so \(a_{16}=6+15\times11=171\). For the (16)th term, add (15) differences.

Step 3

Exam Tip

यहाँ (d=11) है इसलिए \(a_{16}=6+15\times11=171\)। (16)वें पद के लिए (15) अंतर जोड़ें।

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एपी \(18,28,38,48,\ldots\) का (9)वाँ पद क्या है?

What is the (9)th term of the AP \(18,28,38,48,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (98)

Step 1

Concept

Here (d=10), so \(a_9=18+8\times10=98\). Up to the (9)th term, (8) differences are added.

Step 2

Why this answer is correct

The correct answer is C. (98). Here (d=10), so \(a_9=18+8\times10=98\). Up to the (9)th term, (8) differences are added.

Step 3

Exam Tip

यहाँ (d=10) है इसलिए \(a_9=18+8\times10=98\)। (9)वें पद तक (8) अंतर जुड़ते हैं।

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एपी \(4,12,20,28,\ldots\) का (15)वाँ पद क्या है?

What is the (15)th term of the AP \(4,12,20,28,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (116)

Step 1

Concept

Here (a=4) and (d=8), so \(a_{15}=4+14\times8=116\). Keep (n-1) correct.

Step 2

Why this answer is correct

The correct answer is C. (116). Here (a=4) and (d=8), so \(a_{15}=4+14\times8=116\). Keep (n-1) correct.

Step 3

Exam Tip

यहाँ (a=4) और (d=8) है इसलिए \(a_{15}=4+14\times8=116\)। (n-1) को सही रखें।

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एपी \(12,20,28,36,\ldots\) का (14)वाँ पद ज्ञात करें।

Find the (14)th term of the AP \(12,20,28,36,\ldots\).

Explanation opens after your attempt
Correct Answer

C. (116)

Step 1

Concept

Here (d=8), so \(a_{14}=12+13\times8=116\). Adding (13d) is correct.

Step 2

Why this answer is correct

The correct answer is C. (116). Here (d=8), so \(a_{14}=12+13\times8=116\). Adding (13d) is correct.

Step 3

Exam Tip

यहाँ (d=8) है इसलिए \(a_{14}=12+13\times8=116\)। (13d) जोड़ना सही है।

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एपी \(40,36,32,28,\ldots\) का (15)वाँ पद ज्ञात करें।

Find the (15)th term of the AP \(40,36,32,28,\ldots\).

Explanation opens after your attempt
Correct Answer

C. (-16)

Step 1

Concept

Here (d=-4), so (a_{15}=40+14(-4)=-16). The common difference is added (14) times.

Step 2

Why this answer is correct

The correct answer is C. (-16). Here (d=-4), so (a_{15}=40+14(-4)=-16). The common difference is added (14) times.

Step 3

Exam Tip

यहाँ (d=-4) है इसलिए (a_{15}=40+14(-4)=-16)। (14) बार सार्व अंतर जोड़ना है।

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एपी \(18,23,28,33,\ldots\) में (8)वाँ पद ज्ञात करें।

Find the (8)th term in the AP \(18,23,28,33,\ldots\).

Explanation opens after your attempt
Correct Answer

B. (53)

Step 1

Concept

Here (d=5), so \(a_8=18+7\times5=53\). The (8)th term includes (7) differences.

Step 2

Why this answer is correct

The correct answer is B. (53). Here (d=5), so \(a_8=18+7\times5=53\). The (8)th term includes (7) differences.

Step 3

Exam Tip

यहाँ (d=5) है इसलिए \(a_8=18+7\times5=53\)। (8)वें पद में (7) अंतर शामिल होते हैं।

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समांतर श्रेढ़ी \(21,28,35,42,\ldots\) का (14)वाँ पद क्या है?

What is the (14)th term of the AP \(21,28,35,42,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. (112)

Step 1

Concept

Here (a=21), (d=7), so \(a_{14}=21+13\times7=112\). Add (13d) for the (14)th term.

Step 2

Why this answer is correct

The correct answer is A. (112). Here (a=21), (d=7), so \(a_{14}=21+13\times7=112\). Add (13d) for the (14)th term.

Step 3

Exam Tip

यहाँ (a=21), (d=7) है, इसलिए \(a_{14}=21+13\times7=112\)। (14)वें पद के लिए (13d) जोड़ें।

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एक अंकगणितीय श्रेणी में तीसरे और सातवें पद का अंतर (28) है। सार्व अंतर क्या है?

In an arithmetic progression, the difference between the third and seventh terms is (28). What is the common difference?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

From the third to the seventh term there are (4) gaps, so (4d=28) and (d=7). Convert term distance into number of gaps.

Step 2

Why this answer is correct

The correct answer is C. (7). From the third to the seventh term there are (4) gaps, so (4d=28) and (d=7). Convert term distance into number of gaps.

Step 3

Exam Tip

तीसरे से सातवें पद तक (4) अंतर होते हैं, इसलिए (4d=28) और (d=7)। पदों की दूरी को अंतरालों की संख्या में बदलें।

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यदि \(28,21,14,7,\ldots\) में (d) ज्ञात करना हो तो सही गणना कौन सी है?

If (d) is to be found in \(28,21,14,7,\ldots\), which calculation is correct?

Explanation opens after your attempt
Correct Answer

C. (21-28=-7)

Step 1

Concept

The common difference is next term minus previous term, so (21-28=-7). In a decreasing sequence the order of subtraction is very important.

Step 2

Why this answer is correct

The correct answer is C. (21-28=-7). The common difference is next term minus previous term, so (21-28=-7). In a decreasing sequence the order of subtraction is very important.

Step 3

Exam Tip

सार्व अंतर अगला पद घटा पिछला पद है इसलिए (21-28=-7)। घटते अनुक्रम में घटाव का क्रम बहुत जरूरी है।

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यदि \(10,16,22,28,\ldots\) में प्रत्येक पद में (3) जोड़ दिया जाए तो नए अनुक्रम का (d) क्या होगा?

If (3) is added to each term of \(10,16,22,28,\ldots\), what will be (d) of the new sequence?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

Adding the same (3) to each term does not change the difference, so (d=6). Equal change in all terms does not change (d).

Step 2

Why this answer is correct

The correct answer is B. (6). Adding the same (3) to each term does not change the difference, so (d=6). Equal change in all terms does not change (d).

Step 3

Exam Tip

हर पद में समान (3) जोड़ने से अंतर नहीं बदलता, इसलिए (d=6) रहेगा। सभी पदों में समान बदलाव (d) को नहीं बदलता।

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यदि किसी समांतर श्रेढ़ी में (a=28) और दूसरा पद (19) है, तो सार्व अंतर क्या है?

If an arithmetic progression has (a=28) and second term (19), what is the common difference?

Explanation opens after your attempt
Correct Answer

B. (-9)

Step 1

Concept

The common difference is (19-28=-9). Find (d) by subtracting the first term from the second term.

Step 2

Why this answer is correct

The correct answer is B. (-9). The common difference is (19-28=-9). Find (d) by subtracting the first term from the second term.

Step 3

Exam Tip

सार्व अंतर (19-28=-9) है। दूसरे पद से पहले पद को घटाकर (d) निकालें।

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अनुक्रम \(16,20,24,28,\ldots\) में (a+d) का मान क्या है?

In the sequence \(16,20,24,28,\ldots\), what is the value of (a+d)?

Explanation opens after your attempt
Correct Answer

C. (20)

Step 1

Concept

Here (a=16) and (d=4), so (a+d=20). (a+d) is actually the second term.

Step 2

Why this answer is correct

The correct answer is C. (20). Here (a=16) and (d=4), so (a+d=20). (a+d) is actually the second term.

Step 3

Exam Tip

यहां (a=16) और (d=4), इसलिए (a+d=20)। (a+d) वास्तव में दूसरा पद होता है।

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अनुक्रम \(18,23,28,33,\ldots\) का सार्व अंतर क्या है?

What is the common difference of the sequence \(18,23,28,33,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

The common difference is (23-18=5), and the same difference continues. In exams always check the difference of consecutive terms.

Step 2

Why this answer is correct

The correct answer is B. (5). The common difference is (23-18=5), and the same difference continues. In exams always check the difference of consecutive terms.

Step 3

Exam Tip

सार्व अंतर (23-18=5) है और आगे भी यही अंतर है। परीक्षा में दो क्रमागत पदों का अंतर जरूर जांचें।

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अनुक्रम \(18,23,28,33,\ldots\) में (23) कौन-सा पद है?

In the sequence \(18,23,28,33,\ldots\), which term is (23)?

Explanation opens after your attempt
Correct Answer

B. दूसरा पदSecond term

Step 1

Concept

In the written order, (18) is the first term and (23) is the second term. Count from the start to find the term number.

Step 2

Why this answer is correct

The correct answer is B. दूसरा पद / Second term. In the written order, (18) is the first term and (23) is the second term. Count from the start to find the term number.

Step 3

Exam Tip

लिखे क्रम में (18) पहला और (23) दूसरा पद है। पद संख्या निकालते समय शुरू से गिनें।

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अनुक्रम \(13,18,23,28,\ldots\) में (a) और (d) क्रमशः क्या हैं?

In \(13,18,23,28,\ldots\), what are (a) and (d) respectively?

Explanation opens after your attempt
Correct Answer

B. (a=13,\ d=5)

Step 1

Concept

The first term is (a=13), and the common difference is (18-13=5). Do not change the order of asked values.

Step 2

Why this answer is correct

The correct answer is B. (a=13,\ d=5). The first term is (a=13), and the common difference is (18-13=5). Do not change the order of asked values.

Step 3

Exam Tip

पहला पद (a=13) और सार्व अंतर (18-13=5) है। क्रमशः पूछे गए मानों का क्रम न बदलें।

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अनुक्रम \(16,22,28,34,\ldots\) में चौथा पद क्या है?

What is the fourth term in \(16,22,28,34,\ldots\)?

Explanation opens after your attempt
Correct Answer

D. (34)

Step 1

Concept

In the written order, the fourth term is (34). In such questions, count directly instead of using a formula.

Step 2

Why this answer is correct

The correct answer is D. (34). In the written order, the fourth term is (34). In such questions, count directly instead of using a formula.

Step 3

Exam Tip

लिखे हुए क्रम में चौथा पद (34) है। ऐसे प्रश्न में सूत्र की जगह सीधी गिनती करें।

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अनुक्रम \(7,14,21,28,\ldots\) में अगला पद क्या होगा?

What will be the next term in \(7,14,21,28,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (35)

Step 1

Concept

Here (d=7). Therefore, the next term is (28+7=35).

Step 2

Why this answer is correct

The correct answer is C. (35). Here (d=7). Therefore, the next term is (28+7=35).

Step 3

Exam Tip

यहाँ (d=7) है। इसलिए अगला पद (28+7=35) होगा।

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एक सीढ़ी पर हर अगला डंडा पिछले से (6) सेमी ऊंचा है। ऊंचाइयां \(10,16,22,28,\ldots\) हैं तो यह क्या बनाती हैं?

On a ladder, each next rung is (6) cm higher than the previous one. The heights are \(10,16,22,28,\ldots\). What do they form?

Explanation opens after your attempt
Correct Answer

D. अंकगणितीय श्रेणीArithmetic progression

Step 1

Concept

There is an equal increase of (6) each time, so it is an arithmetic progression. In word problems look for equal increase.

Step 2

Why this answer is correct

The correct answer is D. अंकगणितीय श्रेणी / Arithmetic progression. There is an equal increase of (6) each time, so it is an arithmetic progression. In word problems look for equal increase.

Step 3

Exam Tip

हर बार (6) की समान वृद्धि है इसलिए यह अंकगणितीय श्रेणी है। शब्द प्रश्न में समान वृद्धि खोजें।

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समांतर श्रेढ़ी \(31,28,25,22,\ldots\) का सार्व अंतर क्या है?

What is the common difference of the arithmetic progression \(31,28,25,22,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (-3)

Step 1

Concept

(28-31=-3). In a decreasing progression, the common difference is written as negative.

Step 2

Why this answer is correct

The correct answer is B. (-3). (28-31=-3). In a decreasing progression, the common difference is written as negative.

Step 3

Exam Tip

(28-31=-3) है। घटती श्रेढ़ी में सार्व अंतर ऋणात्मक लिखा जाता है।

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युग्म (7x+fy=2) और (28x+20y=13) में कोई हल न होने के लिए (f) क्या होगा?

What is (f) for no solution in (7x+fy=2) and (28x+20y=13)?

Explanation opens after your attempt
Correct Answer

B. (f=5)

Step 1

Concept

To make the coefficient ratio \(\frac{1}{4}\), (f=5) is required. The different constant ratio gives no solution.

Step 2

Why this answer is correct

The correct answer is B. (f=5). To make the coefficient ratio \(\frac{1}{4}\), (f=5) is required. The different constant ratio gives no solution.

Step 3

Exam Tip

गुणांक अनुपात \(\frac{1}{4}\) बनाने के लिए (f=5) चाहिए। स्थिर पद अनुपात अलग होने से कोई हल नहीं होगा।

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युग्म (2x+3y=d) और (14x+21y=28) में कोई हल न हो, इसके लिए (d) पर कौन-सी शर्त होगी?

For (2x+3y=d) and (14x+21y=28) to have no solution, what condition is required on (d)?

Explanation opens after your attempt
Correct Answer

B. \(d\neq4\)

Step 1

Concept

The coefficient ratio is \(\frac{1}{7}\). For no solution, \(\frac{d}{28}\neq\frac{1}{7}\), so \(d\neq4\).

Step 2

Why this answer is correct

The correct answer is B. \(d\neq4\). The coefficient ratio is \(\frac{1}{7}\). For no solution, \(\frac{d}{28}\neq\frac{1}{7}\), so \(d\neq4\).

Step 3

Exam Tip

गुणांक अनुपात \(\frac{1}{7}\) है। कोई हल नहीं के लिए \(\frac{d}{28}\neq\frac{1}{7}\), इसलिए \(d\neq4\)।

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समीकरणों (7x+dy=63) और (28x+36y=252) के अनंत हल होने के लिए (d) का मान क्या है?

What is the value of (d) for the equations (7x+dy=63) and (28x+36y=252) to have infinitely many solutions?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

For infinitely many solutions, (7/28=d/36=63/252) must hold. Therefore, (d=9).

Step 2

Why this answer is correct

The correct answer is C. (9). For infinitely many solutions, (7/28=d/36=63/252) must hold. Therefore, (d=9).

Step 3

Exam Tip

अनंत हल के लिए (7/28=d/36=63/252) होना चाहिए। इसलिए (d=9)।

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समीकरणों (bx+16y=64) और (14x+28y=131) का कोई हल न होने के लिए (b) का मान क्या होगा?

What is the value of (b) for the equations (bx+16y=64) and (14x+28y=131) to have no solution?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

For no solution, (b/14=16/28) and (64/131) must be different. Hence, (b=8).

Step 2

Why this answer is correct

The correct answer is C. (8). For no solution, (b/14=16/28) and (64/131) must be different. Hence, (b=8).

Step 3

Exam Tip

कोई हल नहीं के लिए (b/14=16/28) और (64/131) अलग होना चाहिए। इसलिए (b=8)।

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समीकरणों (5x+ay=45) और (20x+28y=180) के अनंत हल होने के लिए (a) का मान क्या होगा?

What is the value of (a) for the equations (5x+ay=45) and (20x+28y=180) to have infinitely many solutions?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

For infinitely many solutions, (5/20=a/28=45/180) must hold. Therefore, (a=7) is correct.

Step 2

Why this answer is correct

The correct answer is C. (7). For infinitely many solutions, (5/20=a/28=45/180) must hold. Therefore, (a=7) is correct.

Step 3

Exam Tip

अनंत हल के लिए (5/20=a/28=45/180) होना चाहिए। इसलिए (a=7) सही है।

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दो टिकटों के दामों के लिए (8x+3y=280) और (16x+6y=575) समीकरण बने। यह प्रणाली कैसी है?

For prices of two tickets, the equations (8x+3y=280) and (16x+6y=575) are formed. What type of system is this?

Explanation opens after your attempt
Correct Answer

C. असंगतInconsistent

Step 1

Concept

The first two ratios are equal but (280/575) is different. Therefore, the system is inconsistent.

Step 2

Why this answer is correct

The correct answer is C. असंगत / Inconsistent. The first two ratios are equal but (280/575) is different. Therefore, the system is inconsistent.

Step 3

Exam Tip

पहले दो अनुपात बराबर हैं लेकिन (280/575) अलग है। इसलिए प्रणाली असंगत है।

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समीकरणों (21x+28y=84) और (3x+4y=15) को देखकर कौन-सा निष्कर्ष सही है?

Which conclusion is correct by observing the equations (21x+28y=84) and (3x+4y=15)?

Explanation opens after your attempt
Correct Answer

B. पहले दो अनुपात बराबर हैं लेकिन स्थिर पद का अनुपात अलग हैFirst two ratios are equal but the constant ratio is different

Step 1

Concept

Here (21/3=28/4) but (84/15) is different. Therefore, there will be no solution.

Step 2

Why this answer is correct

The correct answer is B. पहले दो अनुपात बराबर हैं लेकिन स्थिर पद का अनुपात अलग है / First two ratios are equal but the constant ratio is different. Here (21/3=28/4) but (84/15) is different. Therefore, there will be no solution.

Step 3

Exam Tip

यहां (21/3=28/4) लेकिन (84/15) अलग है। इसलिए कोई हल नहीं होगा।

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समीकरणों (bx+14y=56) और (12x+28y=115) का कोई हल न होने के लिए (b) का मान क्या होगा?

What is the value of (b) for the equations (bx+14y=56) and (12x+28y=115) to have no solution?

Explanation opens after your attempt
Correct Answer

C. (6)

Step 1

Concept

For no solution, (b/12=14/28) and (56/115) must be different. Hence, (b=6).

Step 2

Why this answer is correct

The correct answer is C. (6). For no solution, (b/12=14/28) and (56/115) must be different. Hence, (b=6).

Step 3

Exam Tip

कोई हल नहीं के लिए (b/12=14/28) और (56/115) अलग होना चाहिए। इसलिए (b=6)।

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समीकरणों (14x+9y=61) और (28x+18y=122) को देखकर कौन-सा कथन सही है?

Which statement is correct by observing the equations (14x+9y=61) and (28x+18y=122)?

Explanation opens after your attempt
Correct Answer

B. रेखाएं एक ही हैंLines are the same

Step 1

Concept

The second equation is (2) times the first. Therefore, both lines are the same.

Step 2

Why this answer is correct

The correct answer is B. रेखाएं एक ही हैं / Lines are the same. The second equation is (2) times the first. Therefore, both lines are the same.

Step 3

Exam Tip

दूसरा समीकरण पहले का (2) गुना है। इसलिए दोनों रेखाएं एक ही हैं।

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समीकरणों (20x+28y=84) और (5x+7y=23) का युग्म किस प्रकार का है?

What type of pair is formed by the equations (20x+28y=84) and (5x+7y=23)?

Explanation opens after your attempt
Correct Answer

C. असंगतInconsistent

Step 1

Concept

Here (20/5=28/7) but (84/23) is different. Therefore, this is an inconsistent pair.

Step 2

Why this answer is correct

The correct answer is C. असंगत / Inconsistent. Here (20/5=28/7) but (84/23) is different. Therefore, this is an inconsistent pair.

Step 3

Exam Tip

यहां (20/5=28/7) लेकिन (84/23) अलग है। इसलिए यह असंगत युग्म है।

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