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81 results found for "100 in" in Class 10.

यदि (a=1), (d=1), (n=100) है तो \(S_{100}\) क्या होगा?

If (a=1), (d=1), (n=100), what is \(S_{100}\)?

Explanation opens after your attempt
Correct Answer

B. (5050)

Step 1

Concept

This is the sum of the first (100) natural numbers. \(S_{100}=\frac{100\cdot101}{2}=5050\).

Step 2

Why this answer is correct

The correct answer is B. (5050). This is the sum of the first (100) natural numbers. \(S_{100}=\frac{100\cdot101}{2}=5050\).

Step 3

Exam Tip

यह पहले (100) प्राकृतिक संख्याओं का योग है। \(S_{100}=\frac{100\cdot101}{2}=5050\)।

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संख्या 100 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 100?

Explanation opens after your attempt
Correct Answer

A. \(2^2\times5^2\)

Step 1

Concept

Write \(100=4\times25\).

Step 2

Why this answer is correct

\(4=2^2\) and \(25=5^2\), so \(100=2^2\times5^2\).

Step 3

Exam Tip

Convert 4 and 25 into prime powers. चरण 1: \(100=4\times25\) लिखें। चरण 2: \(4=2^2\) और \(25=5^2\), इसलिए \(100=2^2\times5^2\)। चरण 3: 4 और 25 को अभाज्य घातों में बदलें।

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(999) को (100) से भाग देने पर यूक्लिड विभाजन प्रमेय के अनुसार शेषफल क्या होगा?

According to Euclid’s division lemma, what is the remainder when (999) is divided by (100)?

Explanation opens after your attempt
Correct Answer

C. (99)

Step 1

Concept

\(100 \times 9=900\).

Step 2

Why this answer is correct

(999-900=99), so the remainder is (99).

Step 3

Exam Tip

In division by (100), the last two digits often give the remainder, but still check (r<100). चरण 1: \(100 \times 9=900\)। चरण 2: (999-900=99), इसलिए शेषफल (99) है। चरण 3: (100) से भाग में अंतिम दो अंक अक्सर शेषफल बताते हैं, पर शर्त (r<100) भी देखें।

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एक कपड़ा दुकान पहले दिन (100) मीटर कपड़ा बेचती है और हर अगले दिन (25) मीटर अधिक बेचती है। (9) दिनों में कुल कितने मीटर कपड़ा बिकेगा?

A cloth shop sells (100) metres of cloth on the first day and (25) metres more each next day. How many metres of cloth are sold in (9) days?

Explanation opens after your attempt
Correct Answer

B. (1800)

Step 1

Concept

The cloth sales form \(100,125,150,\ldots\) and \(S_9=1800\). Exam tip: use the sum formula for sales across all days.

Step 2

Why this answer is correct

The correct answer is B. (1800). The cloth sales form \(100,125,150,\ldots\) and \(S_9=1800\). Exam tip: use the sum formula for sales across all days.

Step 3

Exam Tip

कपड़े की बिक्री \(100,125,150,\ldots\) है और \(S_9=1800\)। परीक्षा में सभी दिनों की बिक्री के लिए योग सूत्र लगाएं।

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एक टैक्सी में पहले किलोमीटर का किराया (100) रुपये है और हर अगले किलोमीटर का किराया (25) रुपये अधिक है। (9) किलोमीटर का कुल किराया कितना होगा?

In a taxi the fare for the first kilometre is (100) rupees and each next kilometre costs (25) rupees more. What is the total fare for (9) kilometres?

Explanation opens after your attempt
Correct Answer

A. (1800)

Step 1

Concept

The fares are \(100,125,150,\ldots\) and \(S_9=1800\). Exam tip: treat the fare for each kilometre as one term.

Step 2

Why this answer is correct

The correct answer is A. (1800). The fares are \(100,125,150,\ldots\) and \(S_9=1800\). Exam tip: treat the fare for each kilometre as one term.

Step 3

Exam Tip

किराया \(100,125,150,\ldots\) है और \(S_9=1800\)। परीक्षा में प्रत्येक किलोमीटर का किराया एक पद मानें।

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एक दान अभियान में पहले दिन (200) रुपये मिले और हर अगले दिन (100) रुपये अधिक मिले। कुल (5400) रुपये जमा होने में कितने दिन लगेंगे?

In a donation campaign (200) rupees are received on the first day and (100) rupees more each next day. How many days will it take to collect (5400) rupees?

Explanation opens after your attempt
Correct Answer

B. (9)

Step 1

Concept

The donation amounts are \(200,300,400,\ldots\) and \(S_n=5400\) gives (n=9). Exam tip: form an \(S_n\) equation for the target total.

Step 2

Why this answer is correct

The correct answer is B. (9). The donation amounts are \(200,300,400,\ldots\) and \(S_n=5400\) gives (n=9). Exam tip: form an \(S_n\) equation for the target total.

Step 3

Exam Tip

दान राशि \(200,300,400,\ldots\) है और \(S_n=5400\) से (n=9)। परीक्षा में लक्ष्य कुल राशि के लिए \(S_n\) का समीकरण बनाएं।

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एक पंप पहले घंटे (100) लीटर पानी भरता है और हर अगले घंटे (25) लीटर अधिक भरता है। (7) घंटों में कुल कितना पानी भरेगा?

A pump fills (100) litres of water in the first hour and (25) litres more each next hour. How much water will it fill in (7) hours?

Explanation opens after your attempt
Correct Answer

C. (1225)

Step 1

Concept

The water amounts are \(100,125,150,\ldots\) and \(S_7=1225\). Exam tip: treat hourly filled water as AP terms.

Step 2

Why this answer is correct

The correct answer is C. (1225). The water amounts are \(100,125,150,\ldots\) and \(S_7=1225\). Exam tip: treat hourly filled water as AP terms.

Step 3

Exam Tip

पानी की मात्रा \(100,125,150,\ldots\) है और \(S_7=1225\)। परीक्षा में प्रति घंटे भरे पानी को ए.पी. के पद मानें।

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एक ऐप की आय पहले दिन (500) रुपये है और हर अगले दिन (100) रुपये बढ़ती है। (10) दिनों की कुल आय कितनी होगी?

An app earns (500) rupees on the first day and the income increases by (100) rupees each next day. What is the total income in (10) days?

Explanation opens after your attempt
Correct Answer

C. (9500)

Step 1

Concept

The income is \(500,600,700,\ldots\) and \(S_{10}=9500\). Exam tip: add daily income as AP terms.

Step 2

Why this answer is correct

The correct answer is C. (9500). The income is \(500,600,700,\ldots\) and \(S_{10}=9500\). Exam tip: add daily income as AP terms.

Step 3

Exam Tip

आय \(500,600,700,\ldots\) है और \(S_{10}=9500\)। परीक्षा में दैनिक आय को ए.पी. के पदों की तरह जोड़ें।

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एक बचत योजना में पहले महीने (100) रुपये जमा होते हैं और (12) महीनों की कुल बचत (4500) रुपये है। यदि हर महीने बचत समान रूप से बढ़ती है तो मासिक वृद्धि कितनी है?

In a saving plan (100) rupees are deposited in the first month and the total saving in (12) months is (4500) rupees. If the saving increases equally every month, what is the monthly increase?

Explanation opens after your attempt
Correct Answer

B. (50)

Step 1

Concept

Using \(S_{12}=4500\) and (a=100) gives (d=50). Exam tip: find the common difference from total and first term.

Step 2

Why this answer is correct

The correct answer is B. (50). Using \(S_{12}=4500\) and (a=100) gives (d=50). Exam tip: find the common difference from total and first term.

Step 3

Exam Tip

\(S_{12}=4500\) और (a=100) रखने पर (d=50) मिलता है। परीक्षा में कुल और प्रथम पद से सार्व अंतर निकालें।

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एक दान अभियान में पहले दिन (100) रुपये मिले और हर अगले दिन (50) रुपये अधिक मिले। कुल (3250) रुपये जमा होने में कितने दिन लगेंगे?

In a donation campaign (100) rupees are received on the first day and (50) rupees more each next day. How many days will it take to collect (3250) rupees?

Explanation opens after your attempt
Correct Answer

B. (10)

Step 1

Concept

The donation amounts are \(100,150,200,\ldots\), and \(S_n=3250\) gives (n=10). Exam tip: form an \(S_n\) equation for the target total.

Step 2

Why this answer is correct

The correct answer is B. (10). The donation amounts are \(100,150,200,\ldots\), and \(S_n=3250\) gives (n=10). Exam tip: form an \(S_n\) equation for the target total.

Step 3

Exam Tip

दान राशि \(100,150,200,\ldots\) है और \(S_n=3250\) से (n=10)। परीक्षा में लक्ष्य कुल राशि के लिए \(S_n\) का समीकरण बनाएं।

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एक मशीन पहले घंटे (100) इकाइयां बनाती है और हर अगले घंटे (5) इकाइयां कम बनाती है। पहले (10) घंटों में कुल उत्पादन कितना होगा?

A machine produces (100) units in the first hour and (5) fewer units each next hour. What is the total production in the first (10) hours?

Explanation opens after your attempt
Correct Answer

C. (775)

Step 1

Concept

The production is the decreasing AP \(100,95,90,\ldots\) and \(S_{10}=775\). Exam tip: for decreasing production rate, (d) is negative.

Step 2

Why this answer is correct

The correct answer is C. (775). The production is the decreasing AP \(100,95,90,\ldots\) and \(S_{10}=775\). Exam tip: for decreasing production rate, (d) is negative.

Step 3

Exam Tip

उत्पादन \(100,95,90,\ldots\) घटती समान्तर श्रेणी है और \(S_{10}=775\)। परीक्षा में घटती उत्पादन दर के लिए (d) ऋणात्मक होता है।

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एक विद्यार्थी पहले महीने (100) रुपये बचाता है और हर अगले महीने (50) रुपये अधिक बचाता है। किस महीने में उसकी मासिक बचत (700) रुपये होगी?

A student saves (100) rupees in the first month and (50) rupees more each next month. In which month will the monthly saving be (700) rupees?

Explanation opens after your attempt
Correct Answer

B. (13)

Step 1

Concept

Putting \(a_n=700\), (100+(n-1)50=700), gives (n=13). Exam tip: use the (n)th term for a particular month's amount.

Step 2

Why this answer is correct

The correct answer is B. (13). Putting \(a_n=700\), (100+(n-1)50=700), gives (n=13). Exam tip: use the (n)th term for a particular month's amount.

Step 3

Exam Tip

\(a_n=700\) रखने पर (100+(n-1)50=700) से (n=13)। परीक्षा में किसी खास महीने की राशि के लिए (n)वाँ पद लगाएं।

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एक बैंक योजना में पहले महीने (300) रुपये जमा होते हैं और हर अगले महीने (100) रुपये अधिक जमा होते हैं। (6)वें महीने कितनी राशि जमा होगी?

In a bank plan (300) rupees are deposited in the first month and (100) rupees more each next month. How much is deposited in the (6)th month?

Explanation opens after your attempt
Correct Answer

B. (800) रुपये(800) rupees

Step 1

Concept

The deposits form an AP. (a_6=300+5(100)=800).

Step 2

Why this answer is correct

The correct answer is B. (800) रुपये / (800) rupees. The deposits form an AP. (a_6=300+5(100)=800).

Step 3

Exam Tip

जमा राशि समान्तर श्रेणी है। (a_6=300+5(100)=800)।

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एक मोबाइल ऐप पर पहले दिन (100) यूज़र जुड़े और हर अगले दिन (50) यूज़र अधिक जुड़े। (5) दिनों में कुल कितने यूज़र जुड़ेंगे?

On a mobile app (100) users joined on the first day and (50) more users joined each next day. How many users join in (5) days?

Explanation opens after your attempt
Correct Answer

C. (1000)

Step 1

Concept

The user numbers are \(100,150,200,\ldots\). \(S_5=1000\) so (1000) users join.

Step 2

Why this answer is correct

The correct answer is C. (1000). The user numbers are \(100,150,200,\ldots\). \(S_5=1000\) so (1000) users join.

Step 3

Exam Tip

यूज़र संख्या \(100,150,200,\ldots\) है। \(S_5=1000\) इसलिए कुल (1000) यूज़र जुड़ेंगे।

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एक मेले में पहले घंटे (100) टिकट बिके और हर अगले घंटे (50) टिकट अधिक बिके। (6) घंटों में कुल कितने टिकट बिके?

In a fair, (100) tickets are sold in the first hour and (50) more tickets each next hour. How many tickets are sold in (6) hours?

Explanation opens after your attempt
Correct Answer

C. (1350)

Step 1

Concept

The ticket sales are \(100,150,200,\ldots\). \(S_6=1350\).

Step 2

Why this answer is correct

The correct answer is C. (1350). The ticket sales are \(100,150,200,\ldots\). \(S_6=1350\).

Step 3

Exam Tip

टिकट बिक्री \(100,150,200,\ldots\) है। \(S_6=1350\)।

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एक बैंक खाते में पहले महीने (500) रुपये जमा किए गए और हर अगले महीने (100) रुपये अधिक जमा किए गए। (9)वें महीने जमा राशि कितनी होगी?

In a bank account, (500) rupees are deposited in the first month and (100) rupees more each next month. What is the deposit in the (9)th month?

Explanation opens after your attempt
Correct Answer

B. (1300) रुपये

Step 1

Concept

The deposits form an AP. (a_9=500+8(100)=1300).

Step 2

Why this answer is correct

The correct answer is B. (1300) रुपये. The deposits form an AP. (a_9=500+8(100)=1300).

Step 3

Exam Tip

जमा राशि समान्तर श्रेणी है। (a_9=500+8(100)=1300)।

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एक दौड़ में पहले चक्कर की लंबाई (100) मीटर है और हर अगले चक्कर की लंबाई (20) मीटर अधिक है। (6)वें चक्कर की लंबाई कितनी होगी?

In a race, the first lap is (100) metres and each next lap is (20) metres longer. What is the length of the (6)th lap?

Explanation opens after your attempt
Correct Answer

B. (200) मीटर

Step 1

Concept

The lengths form an AP. (a_6=100+5(20)=200).

Step 2

Why this answer is correct

The correct answer is B. (200) मीटर. The lengths form an AP. (a_6=100+5(20)=200).

Step 3

Exam Tip

लंबाइयां समान्तर श्रेणी बनाती हैं। (a_6=100+5(20)=200)।

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एक दान अभियान में पहले दिन (100) रुपये मिले और हर अगले दिन (20) रुपये अधिक मिले। (7) दिनों में कुल कितना दान मिला?

In a donation drive, (100) rupees are received on the first day and (20) rupees more each next day. What is the total donation in (7) days?

Explanation opens after your attempt
Correct Answer

C. (1120)

Step 1

Concept

The donation amounts are \(100,120,140,\ldots\). (S_7=\frac{7}{2}[200+6(20)]=1120).

Step 2

Why this answer is correct

The correct answer is C. (1120). The donation amounts are \(100,120,140,\ldots\). (S_7=\frac{7}{2}[200+6(20)]=1120).

Step 3

Exam Tip

दान राशि \(100,120,140,\ldots\) है। (S_7=\frac{7}{2}[200+6(20)]=1120)।

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(100) और (350) के बीच (14) से विभाज्य पूर्णांकों का योग कितना होगा?

What is the sum of the integers divisible by (14) between (100) and (350)?

Explanation opens after your attempt
Correct Answer

C. (4158)

Step 1

Concept

The terms are \(112,126,\ldots,350\), making (18) terms. Exam tip: choose the first and last valid terms carefully.

Step 2

Why this answer is correct

The correct answer is C. (4158). The terms are \(112,126,\ldots,350\), making (18) terms. Exam tip: choose the first and last valid terms carefully.

Step 3

Exam Tip

पद \(112,126,\ldots,350\) हैं और कुल (18) पद बनते हैं। परीक्षा में पहला और अंतिम मान सावधानी से चुनें।

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समान्तर श्रेणी \(100,94,88,\ldots\) के आरम्भिक पदों के योग का अधिकतम मान क्या होगा?

What is the maximum value of the sum of initial terms of the arithmetic progression \(100,94,88,\ldots\)?

Explanation opens after your attempt
Correct Answer

D. (901)

Step 1

Concept

The sum is (S_n=n(103-3n)), and the maximum (901) occurs at (n=17). Exam tip: check integer values near the vertex.

Step 2

Why this answer is correct

The correct answer is D. (901). The sum is (S_n=n(103-3n)), and the maximum (901) occurs at (n=17). Exam tip: check integer values near the vertex.

Step 3

Exam Tip

योग (S_n=n(103-3n)) है और (n=17) पर अधिकतम (901) मिलता है। परीक्षा में शीर्ष के पास वाले पूर्णांक जांचें।

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(100) से (1000) तक उन सभी संख्याओं का योग ज्ञात कीजिए जो (10) से विभाज्य हैं लेकिन (25) से विभाज्य नहीं हैं।

Find the sum of all numbers from (100) to (1000) that are divisible by (10) but not by (25).

Explanation opens after your attempt
Correct Answer

A. (39600)

Step 1

Concept

Subtracting the sum of multiples of (50) from the sum of multiples of (10) gives (39600). Remove the common multiples of both conditions.

Step 2

Why this answer is correct

The correct answer is A. (39600). Subtracting the sum of multiples of (50) from the sum of multiples of (10) gives (39600). Remove the common multiples of both conditions.

Step 3

Exam Tip

(10) के गुणजों के योग से (50) के गुणजों का योग घटाने पर (39600) मिलता है। दोनों शर्तों के साझा गुणजों को हटाएँ।

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(100) से (900) तक उन सभी संख्याओं का योग ज्ञात कीजिए जो (8) से विभाज्य हैं लेकिन (24) से विभाज्य नहीं हैं।

Find the sum of all numbers from (100) to (900) that are divisible by (8) but not by (24).

Explanation opens after your attempt
Correct Answer

C. (33368)

Step 1

Concept

Subtracting the sum of multiples of (24) from the sum of multiples of (8) gives (33368). In a but-not condition, subtract the complement.

Step 2

Why this answer is correct

The correct answer is C. (33368). Subtracting the sum of multiples of (24) from the sum of multiples of (8) gives (33368). In a but-not condition, subtract the complement.

Step 3

Exam Tip

(8) के गुणजों के योग से (24) के गुणजों का योग घटाने पर (33368) मिलता है। but not वाली शर्त में पूरक घटाएँ।

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(100) और (500) के बीच (11) से विभाज्य सभी संख्याओं का योग ज्ञात कीजिए।

Find the sum of all numbers divisible by (11) between (100) and (500).

Explanation opens after your attempt
Correct Answer

D. (10890)

Step 1

Concept

The numbers are \(110,121,\ldots,495\), and their sum is (10890). When between is written, check carefully whether endpoints are included.

Step 2

Why this answer is correct

The correct answer is D. (10890). The numbers are \(110,121,\ldots,495\), and their sum is (10890). When between is written, check carefully whether endpoints are included.

Step 3

Exam Tip

संख्याएँ \(110,121,\ldots,495\) हैं और उनका योग (10890) है। between लिखे होने पर सिरों को शामिल करना है या नहीं यह ध्यान से देखें।

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समांतर श्रेढ़ी \(100,95,90,\ldots\) के पहले (12) पदों का योग ज्ञात कीजिए।

Find the sum of the first (12) terms of the AP \(100,95,90,\ldots\).

Explanation opens after your attempt
Correct Answer

A. (870)

Step 1

Concept

The last term is (45), so (S_{12}=\frac{12}{2}(100+45)=870). Once the last term is found, the sum is quick.

Step 2

Why this answer is correct

The correct answer is A. (870). The last term is (45), so (S_{12}=\frac{12}{2}(100+45)=870). Once the last term is found, the sum is quick.

Step 3

Exam Tip

अंतिम पद (45) है, इसलिए (S_{12}=\frac{12}{2}(100+45)=870)। अंतिम पद मिल जाए तो योग तेजी से निकलेगा।

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(100) से (200) के बीच (5) से विभाज्य सभी संख्याओं का योग ज्ञात कीजिए।

Find the sum of all numbers divisible by (5) between (100) and (200).

Explanation opens after your attempt
Correct Answer

A. (3150)

Step 1

Concept

The numbers are \(105,110,\ldots,195\), and the sum of (19) terms is (2850). The word between often excludes endpoints.

Step 2

Why this answer is correct

The correct answer is A. (3150). The numbers are \(105,110,\ldots,195\), and the sum of (19) terms is (2850). The word between often excludes endpoints.

Step 3

Exam Tip

संख्याएँ \(105,110,\ldots,195\) हैं और (19) पदों का योग (2850) है। बीच का अर्थ अक्सर सिरों को शामिल नहीं करता।

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एक बचत योजना में रवि पहले महीने (500) रुपये और हर अगले महीने (100) रुपये अधिक जमा करता है। (12) महीनों में कुल जमा राशि कितनी होगी?

In a saving plan, Ravi deposits (500) rupees in the first month and (100) rupees more each next month. What is the total deposit in (12) months?

Explanation opens after your attempt
Correct Answer

A. (12600)

Step 1

Concept

This is an AP with (a=500), (d=100), (n=12), and the total is (12600). In real-life questions, treat each amount as a term.

Step 2

Why this answer is correct

The correct answer is A. (12600). This is an AP with (a=500), (d=100), (n=12), and the total is (12600). In real-life questions, treat each amount as a term.

Step 3

Exam Tip

यह (a=500), (d=100), (n=12) वाली श्रेढ़ी है और कुल योग (12600) है। वास्तविक जीवन प्रश्नों में राशि को पद मानें।

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यदि किसी समांतर श्रेढ़ी में (a=4), (l=100) और \(S_n=1040\), तो पदों की संख्या (n) क्या है?

If an AP has (a=4), (l=100), and \(S_n=1040\), what is the number of terms (n)?

Explanation opens after your attempt
Correct Answer

B. (20)

Step 1

Concept

From (\frac{n}{2}(4+100)=1040), (n=20). When last term and sum are given, use (S_n=\frac{n}{2}(a+l)).

Step 2

Why this answer is correct

The correct answer is B. (20). From (\frac{n}{2}(4+100)=1040), (n=20). When last term and sum are given, use (S_n=\frac{n}{2}(a+l)).

Step 3

Exam Tip

(\frac{n}{2}(4+100)=1040) से (n=20) आता है। अंतिम पद और योग दिए हों तो (S_n=\frac{n}{2}(a+l)) लगाएँ।

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(100) और (350) के बीच (14) से विभाज्य संख्याओं का योग कितना है?

What is the sum of the numbers divisible by (14) between (100) and (350)?

Explanation opens after your attempt
Correct Answer

A. (3808)

Step 1

Concept

The numbers are \(112,126,\ldots,336\), and there are (17) terms, so the sum is (3808). Find the first and last suitable multiples.

Step 2

Why this answer is correct

The correct answer is A. (3808). The numbers are \(112,126,\ldots,336\), and there are (17) terms, so the sum is (3808). Find the first and last suitable multiples.

Step 3

Exam Tip

संख्याएँ \(112,126,\ldots,336\) हैं और (17) पद हैं, इसलिए योग (3808) है। पहले और अंतिम उपयुक्त गुणज ढूँढ़ें।

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(100) से (250) के बीच (8) से विभाज्य संख्याओं का योग ज्ञात कीजिए।

Find the sum of the numbers divisible by (8) between (100) and (250).

Explanation opens after your attempt
Correct Answer

A. (3192)

Step 1

Concept

The numbers are \(104,112,\ldots,248\), and there are (19) terms, so the sum is (3192). In boundary questions, choose the first and last terms carefully.

Step 2

Why this answer is correct

The correct answer is A. (3192). The numbers are \(104,112,\ldots,248\), and there are (19) terms, so the sum is (3192). In boundary questions, choose the first and last terms carefully.

Step 3

Exam Tip

संख्याएँ \(104,112,\ldots,248\) हैं और (19) पद हैं, इसलिए योग (3192) है। सीमा वाले प्रश्न में पहला और अंतिम पद सावधानी से चुनें।

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(4) से (100) तक (4) के गुणजों का योग कितना है?

What is the sum of the multiples of (4) from (4) to (100)?

Explanation opens after your attempt
Correct Answer

B. (1300)

Step 1

Concept

This is the sum of the first (25) multiples of (4), so \(4\times\frac{25\times26}{2}=1300\). Use the sum of natural numbers for multiples.

Step 2

Why this answer is correct

The correct answer is B. (1300). This is the sum of the first (25) multiples of (4), so \(4\times\frac{25\times26}{2}=1300\). Use the sum of natural numbers for multiples.

Step 3

Exam Tip

यह (4) के पहले (25) गुणजों का योग है, इसलिए \(4\times\frac{25\times26}{2}=1300\)। गुणजों में प्राकृतिक संख्याओं का योग लगाएँ।

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(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।

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एक बचत योजना में राशि \(100,150,200,\ldots\) रुपये के रूप में बढ़ती है। पहले (6) महीनों की कुल बचत कितनी होगी?

In a savings plan, the amount increases as \(100,150,200,\ldots\) rupees. What will be the total savings in the first (6) months?

Explanation opens after your attempt
Correct Answer

B. (1350)

Step 1

Concept

Here (a=100), (d=50), and (n=6), so the total saving is (1350) rupees. In money questions, keep the unit in mind.

Step 2

Why this answer is correct

The correct answer is B. (1350). Here (a=100), (d=50), and (n=6), so the total saving is (1350) rupees. In money questions, keep the unit in mind.

Step 3

Exam Tip

यहाँ (a=100), (d=50), (n=6), इसलिए कुल बचत (1350) रुपये है। राशि वाले प्रश्नों में इकाई भी ध्यान रखें।

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समांतर श्रेढ़ी \(100,90,80,\ldots\) के पहले (8) पदों का योग कितना होगा?

What will be the sum of the first (8) terms of the arithmetic progression \(100,90,80,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (520)

Step 1

Concept

The first term is (100), and the eighth term is (30), so (S_8=\frac{8}{2}(130)=520). The same formula applies to decreasing progressions.

Step 2

Why this answer is correct

The correct answer is B. (520). The first term is (100), and the eighth term is (30), so (S_8=\frac{8}{2}(130)=520). The same formula applies to decreasing progressions.

Step 3

Exam Tip

पहला पद (100) और आठवाँ पद (30) है, इसलिए (S_8=\frac{8}{2}(130)=520)। घटती श्रेढ़ी में भी वही सूत्र लागू होता है।

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समान्तर श्रेणी \(100,90,80,\ldots\) के पहले (6) पदों का योग क्या है?

What is the sum of the first (6) terms of the AP \(100,90,80,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (450)

Step 1

Concept

The sixth term is (50). (S_6=\frac{6}{2}(100+50)=450).

Step 2

Why this answer is correct

The correct answer is C. (450). The sixth term is (50). (S_6=\frac{6}{2}(100+50)=450).

Step 3

Exam Tip

छठा पद (50) है। (S_6=\frac{6}{2}(100+50)=450)।

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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।

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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।

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यदि समान्तर श्रेणी में \(a_3=14\) और \(a_7+a_{11}=100\) है तो \(a_{19}\) क्या होगा?

If in an AP \(a_3=14\) and \(a_7+a_{11}=100\), what is \(a_{19}\)?

Explanation opens after your attempt
Correct Answer

B. (86)

Step 1

Concept

(a_7+a_{11}=\(a_3+4d\)+\(a_3+8d\)=28+12d=100), so (d=6). \(a_{19}=14+16d=110\).

Step 2

Why this answer is correct

The correct answer is B. (86). (a_7+a_{11}=\(a_3+4d\)+\(a_3+8d\)=28+12d=100), so (d=6). \(a_{19}=14+16d=110\).

Step 3

Exam Tip

(a_7+a_{11}=\(a_3+4d\)+\(a_3+8d\)=28+12d=100) इसलिए (d=6)। \(a_{19}=14+16d=110\)।

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एक समान्तर श्रेणी में \(a_5+a_{15}=100\) और \(a_9+a_{19}=164\) है। \(a_{27}\) क्या होगा?

In an AP, \(a_5+a_{15}=100\) and \(a_9+a_{19}=164\). What is \(a_{27}\)?

Explanation opens after your attempt
Correct Answer

C. (210)

Step 1

Concept

The first sum gives (2a+18d=100) and the second gives (2a+26d=164). (d=8) and \(a_{27}=210\).

Step 2

Why this answer is correct

The correct answer is C. (210). The first sum gives (2a+18d=100) and the second gives (2a+26d=164). (d=8) and \(a_{27}=210\).

Step 3

Exam Tip

पहले योग से (2a+18d=100) और दूसरे से (2a+26d=164)। (d=8) और \(a_{27}=210\)।

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समान्तर श्रेणी \(-12,-5,2,\ldots\) में (100) से बड़ा पहला पद कौन-सा है?

In the AP \(-12,-5,2,\ldots\), what is the first term greater than (100)?

Explanation opens after your attempt
Correct Answer

B. (103)

Step 1

Concept

(a_n=-12+7(n-1)). The first term after (100) is (103).

Step 2

Why this answer is correct

The correct answer is B. (103). (a_n=-12+7(n-1)). The first term after (100) is (103).

Step 3

Exam Tip

(a_n=-12+7(n-1))। (100) के बाद आने वाला पहला पद (103) है।

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यदि किसी समान्तर श्रेणी में \(a_6+a_{14}=100\) है तो \(a_{10}\) का मान क्या होगा?

If in an AP \(a_6+a_{14}=100\), what is the value of \(a_{10}\)?

Explanation opens after your attempt
Correct Answer

A. (50)

Step 1

Concept

\(a_{10}\) is the middle term between \(a_6\) and \(a_{14}\), so \(a_{10}=\frac{100}{2}=50\). The average of equally spaced terms is the middle term.

Step 2

Why this answer is correct

The correct answer is A. (50). \(a_{10}\) is the middle term between \(a_6\) and \(a_{14}\), so \(a_{10}=\frac{100}{2}=50\). The average of equally spaced terms is the middle term.

Step 3

Exam Tip

\(a_6\) और \(a_{14}\) के बीच का पद \(a_{10}\) है इसलिए \(a_{10}=\frac{100}{2}=50\)। समान दूरी वाले पदों का औसत बीच वाला पद होता है।

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तीन अंकों वाली पहली संख्या (100) है जो (7) से विभाज्य नहीं है, लेकिन \(105,112,119,\ldots\) तीन अंकों वाली (7) की गुणज AP है। इस AP का (50)वां पद क्या होगा?

The first three-digit number is (100), which is not divisible by (7), but \(105,112,119,\ldots\) is the AP of three-digit multiples of (7). What is the (50)th term of this AP?

Explanation opens after your attempt
Correct Answer

B. (448)

Step 1

Concept

In this AP, (a=105), (d=7), so \(a_{50}=105+49\times7=448\). In an AP of multiples, choose the first correct multiple.

Step 2

Why this answer is correct

The correct answer is B. (448). In this AP, (a=105), (d=7), so \(a_{50}=105+49\times7=448\). In an AP of multiples, choose the first correct multiple.

Step 3

Exam Tip

इस AP में (a=105), (d=7), इसलिए \(a_{50}=105+49\times7=448\)। गुणजों की AP में पहला सही गुणज चुनें।

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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।

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समान्तर श्रेणी \(100,92,84,\ldots\) का (15)वां पद क्या होगा?

What will be the (15)th term of the AP \(100,92,84,\ldots\)?

Explanation opens after your attempt
Correct Answer

D. (-12)

Step 1

Concept

Here (d=-8), so (a_{15}=100+14(-8)=-12). In large decreasing differences, multiply first.

Step 2

Why this answer is correct

The correct answer is D. (-12). Here (d=-8), so (a_{15}=100+14(-8)=-12). In large decreasing differences, multiply first.

Step 3

Exam Tip

यहां (d=-8), इसलिए (a_{15}=100+14(-8)=-12)। बड़े घटते अंतर में गुणा पहले करें।

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एपी \(100,97,94,91,\ldots\) का (25)वाँ पद क्या है?

What is the (25)th term of the AP \(100,97,94,91,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. (28)

Step 1

Concept

Here (d=-3), so (a_{25}=100+24(-3)=28). Up to the (25)th term, (24) differences are added.

Step 2

Why this answer is correct

The correct answer is A. (28). Here (d=-3), so (a_{25}=100+24(-3)=28). Up to the (25)th term, (24) differences are added.

Step 3

Exam Tip

यहाँ (d=-3) है इसलिए (a_{25}=100+24(-3)=28)। (25)वें पद तक (24) अंतर जुड़ते हैं।

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एपी \(6,6,6,6,\ldots\) का (100)वाँ पद क्या होगा?

What is the (100)th term of the AP \(6,6,6,6,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

Here (d=0), so \(a_{100}=6\). In a constant AP, every term is the same.

Step 2

Why this answer is correct

The correct answer is A. (6). Here (d=0), so \(a_{100}=6\). In a constant AP, every term is the same.

Step 3

Exam Tip

यहाँ (d=0) है इसलिए \(a_{100}=6\)। स्थिर एपी में हर पद समान होता है।

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एपी \(100,90,80,70,\ldots\) का (12)वाँ पद क्या है?

What is the (12)th term of the AP \(100,90,80,70,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (-10)

Step 1

Concept

Here (d=-10), so (a_{12}=100+11(-10)=-10). The same formula works for large differences too.

Step 2

Why this answer is correct

The correct answer is B. (-10). Here (d=-10), so (a_{12}=100+11(-10)=-10). The same formula works for large differences too.

Step 3

Exam Tip

यहाँ (d=-10) है इसलिए (a_{12}=100+11(-10)=-10)। बड़े अंतर में भी वही सूत्र लगता है।

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एक बचत योजना में पहले महीने (100) रुपये जमा किए जाते हैं और हर महीने (50) रुपये अधिक जमा होते हैं। (8)वें महीने जमा राशि क्या होगी?

In a savings plan, (100) rupees are deposited in the first month and (50) rupees more each month. What will be the deposit in the (8)th month?

Explanation opens after your attempt
Correct Answer

C. (450)

Step 1

Concept

Here (a=100), (d=50), so \(a_8=100+7\times50=450\). The question asks only the (8)th month's deposit, not the total.

Step 2

Why this answer is correct

The correct answer is C. (450). Here (a=100), (d=50), so \(a_8=100+7\times50=450\). The question asks only the (8)th month's deposit, not the total.

Step 3

Exam Tip

यहाँ (a=100), (d=50) है, इसलिए \(a_8=100+7\times50=450\)। कुल जमा नहीं, केवल (8)वें महीने की राशि पूछी गई है।

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समांतर श्रेढ़ी \(100,90,80,70,\ldots\) का (6)वाँ पद क्या है?

What is the (6)th term of the AP \(100,90,80,70,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. (50)

Step 1

Concept

Here (d=-10), so (a_6=100+5(-10)=50). Identify (d) correctly from the first terms.

Step 2

Why this answer is correct

The correct answer is A. (50). Here (d=-10), so (a_6=100+5(-10)=50). Identify (d) correctly from the first terms.

Step 3

Exam Tip

यहाँ (d=-10) है, इसलिए (a_6=100+5(-10)=50)। पहले चार पद देखकर (d) सही पहचानें।

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अनुक्रम \(100,97.5,95,92.5,\ldots\) का सामान्य अंतर क्या है?

What is the common difference of \(100,97.5,95,92.5,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (-2.5)

Step 1

Concept

Each term is (2.5) less than the previous one, so (d=-2.5). In exams, do not forget the negative sign in decreasing decimal sequences.

Step 2

Why this answer is correct

The correct answer is B. (-2.5). Each term is (2.5) less than the previous one, so (d=-2.5). In exams, do not forget the negative sign in decreasing decimal sequences.

Step 3

Exam Tip

हर पद पिछले से (2.5) कम है, इसलिए (d=-2.5)। परीक्षा में घटते दशमलव अनुक्रम में ऋणात्मक चिन्ह न भूलें।

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अनुक्रम \(100,92,84,76,\ldots\) में अगले दो पद कौन-से होंगे?

What are the next two terms in \(100,92,84,76,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (68,60)

Step 1

Concept

Here (d=-8). Therefore, (76-8=68) and (68-8=60).

Step 2

Why this answer is correct

The correct answer is B. (68,60). Here (d=-8). Therefore, (76-8=68) and (68-8=60).

Step 3

Exam Tip

यहाँ (d=-8) है। इसलिए (76-8=68) और (68-8=60) होंगे।

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यदि बचत राशि हर सप्ताह (50) रुपये बढ़ती है और राशियां \(100,150,200,250,\ldots\) हैं तो सार्व अंतर क्या है?

If savings increase by (50) rupees every week and the amounts are \(100,150,200,250,\ldots\), what is the common difference?

Explanation opens after your attempt
Correct Answer

A. (50)

Step 1

Concept

The consecutive difference is (150-100=50). In real-life questions the equal increase is (d).

Step 2

Why this answer is correct

The correct answer is A. (50). The consecutive difference is (150-100=50). In real-life questions the equal increase is (d).

Step 3

Exam Tip

क्रमागत अंतर (150-100=50) है। वास्तविक जीवन के प्रश्नों में समान बढ़ोतरी ही (d) होती है।

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अनुक्रम \(100,90,80,70,\ldots\) में सार्व अंतर कितना है?

What is the common difference in the sequence \(100,90,80,70,\ldots\)?

Explanation opens after your attempt
Correct Answer

C. (-10)

Step 1

Concept

The common difference is (90-100=-10). In a decreasing sequence carefully check the sign.

Step 2

Why this answer is correct

The correct answer is C. (-10). The common difference is (90-100=-10). In a decreasing sequence carefully check the sign.

Step 3

Exam Tip

सार्व अंतर (90-100=-10) है। घटते अनुक्रम में उत्तर का चिह्न जरूर देखें।

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अनुक्रम \(100,90,80,70,\ldots\) का सार्व अंतर क्या है?

What is the common difference of \(100,90,80,70,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (-10)

Step 1

Concept

Here (90-100=-10). Do not take the answer as positive in a decreasing sequence.

Step 2

Why this answer is correct

The correct answer is B. (-10). Here (90-100=-10). Do not take the answer as positive in a decreasing sequence.

Step 3

Exam Tip

यहाँ (90-100=-10) है। घटते अनुक्रम में उत्तर को धनात्मक न मान लें।

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एक दुकान पर दो वस्तुओं के लिए समीकरण (x+2y=50) और (2x+4y=100) बनते हैं। हलों की संख्या क्या होगी?

For two items in a shop, the equations are (x+2y=50) and (2x+4y=100). How many solutions will there be?

Explanation opens after your attempt
Correct Answer

C. अनंत हलInfinitely many solutions

Step 1

Concept

The second equation is (2) times the first. Therefore, both conditions give the same information and have infinitely many solutions.

Step 2

Why this answer is correct

The correct answer is C. अनंत हल / Infinitely many solutions. The second equation is (2) times the first. Therefore, both conditions give the same information and have infinitely many solutions.

Step 3

Exam Tip

दूसरा समीकरण पहले का (2) गुना है। इसलिए दोनों शर्तें एक ही जानकारी देती हैं और अनंत हल होते हैं।

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एक केस में दो टिकटों का कुल मूल्य (₹100) है और महंगा टिकट सस्ते से (₹20) अधिक है। यदि (x) और (y) टिकट मूल्य हैं, तो ग्राफीय समाधान कौन सा है?

In a case, the total price of two tickets is (₹100), and the costlier ticket is (₹20) more than the cheaper one. If (x) and (y) are ticket prices, what is the graphical solution?

Explanation opens after your attempt
Correct Answer

A. ((40,60))

Step 1

Concept

The equations are (x+y=100) and (y-x=20), giving (x=40), (y=60). In word problems, first form the two correct linear equations.

Step 2

Why this answer is correct

The correct answer is A. ((40,60)). The equations are (x+y=100) and (y-x=20), giving (x=40), (y=60). In word problems, first form the two correct linear equations.

Step 3

Exam Tip

समीकरण (x+y=100) और (y-x=20) हैं, जिनसे (x=40), (y=60)। शब्द-प्रश्न में पहले दो सही रेखीय समीकरण बनाएं।

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यदि \( \frac{a}{100} \) संख्या रेखा पर \( \sqrt{3} \) और (1.74) के बीच है, तो (a) का कौन सा मान संभव है?

If \( \frac{a}{100} \) lies between \( \sqrt{3} \) and (1.74) on the number line, which value of (a) is possible?

Explanation opens after your attempt
Correct Answer

B. (173)

Step 1

Concept

\( \sqrt{3}\approx1.732 \), so \( \frac{a}{100} \) must be between (1.732) and (1.74). (a=173) gives (1.73), which is slightly smaller, so check the bound carefully.

Step 2

Why this answer is correct

The correct answer is B. (173). \( \sqrt{3}\approx1.732 \), so \( \frac{a}{100} \) must be between (1.732) and (1.74). (a=173) gives (1.73), which is slightly smaller, so check the bound carefully.

Step 3

Exam Tip

\( \sqrt{3}\approx1.732 \), इसलिए \( \frac{a}{100} \) को (1.732) और (1.74) के बीच होना चाहिए। (a=173) से (1.73) मिलता है जो थोड़ा छोटा है, इसलिए सीमा सावधानी से जाँचें।

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यदि \( \frac{a}{100} \) संख्या रेखा पर \( \sqrt{2} \) और (1.42) के बीच है, तो (a) का कौन सा मान संभव है?

If \( \frac{a}{100} \) lies between \( \sqrt{2} \) and (1.42) on the number line, which value of (a) is possible?

Explanation opens after your attempt
Correct Answer

A. (141)

Step 1

Concept

\( \sqrt{2}\approx1.414 \), so \( \frac{a}{100} \) must be between (1.414) and (1.42). (a=141) gives (1.41), which is not correct.

Step 2

Why this answer is correct

The correct answer is A. (141). \( \sqrt{2}\approx1.414 \), so \( \frac{a}{100} \) must be between (1.414) and (1.42). (a=141) gives (1.41), which is not correct.

Step 3

Exam Tip

\( \sqrt{2}\approx1.414 \), इसलिए \( \frac{a}{100} \) को (1.414) और (1.42) के बीच होना चाहिए। (a=141) से (1.41) मिलता है जो सही नहीं है।

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यदि \(\frac{10^{k}\cdot1000^{2}}{100}=10^{9}\), तो (k) का मान क्या है?

If \(\frac{10^{k}\cdot1000^{2}}{100}=10^{9}\), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

C. (5)

Step 1

Concept

Since \(1000^{2}=10^{6}\) and \(100=10^{2}\), the exponent on the left is (k+6-2=k+4). From (k+4=9), (k=5).

Step 2

Why this answer is correct

The correct answer is C. (5). Since \(1000^{2}=10^{6}\) and \(100=10^{2}\), the exponent on the left is (k+6-2=k+4). From (k+4=9), (k=5).

Step 3

Exam Tip

\(1000^{2}=10^{6}\) और \(100=10^{2}\), इसलिए बाएँ पक्ष की घात (k+6-2=k+4) है। (k+4=9) से (k=5)।

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(\left\(\sqrt{13}+\sqrt{3}\right\)\left\(\sqrt{13}-\sqrt{3}\right\)-\sqrt{100}) का मान क्या है?

What is the value of (\left\(\sqrt{13}+\sqrt{3}\right\)\left\(\sqrt{13}-\sqrt{3}\right\)-\sqrt{100})?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

The conjugate product is (13-3=10), and \(\sqrt{100}=10\), so the difference is (0). In exams, simplify conjugate products directly.

Step 2

Why this answer is correct

The correct answer is A. (0). The conjugate product is (13-3=10), and \(\sqrt{100}=10\), so the difference is (0). In exams, simplify conjugate products directly.

Step 3

Exam Tip

संयुग्म गुणनफल (13-3=10) है और \(\sqrt{100}=10\), इसलिए अंतर (0) है। परीक्षा में संयुग्म गुणनफल को तुरंत परिमेय करें।

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\(x^2-20x+100\) किसके बराबर है?

What is \(x^2-20x+100\) equal to?

Explanation opens after your attempt
Correct Answer

A. ((x-10)2)

Step 1

Concept

This is \(x^2-2\cdot x\cdot10+10^2\). Hence ((x-10)2) is correct.

Step 2

Why this answer is correct

The correct answer is A. ((x-10)2). This is \(x^2-2\cdot x\cdot10+10^2\). Hence ((x-10)2) is correct.

Step 3

Exam Tip

यह \(x^2-2\cdot x\cdot10+10^2\) है। इसलिए ((x-10)2) सही है।

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एक किसान के पास (100) मीटर बाड़ है जिससे वह दीवार के साथ आयताकार खेत के तीन ओर घेरता है। अधिकतम क्षेत्रफल कब मिलेगा?

A farmer has (100) m fencing to enclose three sides of a rectangular field along a wall. When will the maximum area occur?

Explanation opens after your attempt
Correct Answer

B. चौड़ाई (25) मीटरBreadth (25) m

Step 1

Concept

If breadth is (x), length is (100-2x) and area is (A=x(100-2x)). For maximum area, \(x=\frac{100}{4}=25\).

Step 2

Why this answer is correct

The correct answer is B. चौड़ाई (25) मीटर / Breadth (25) m. If breadth is (x), length is (100-2x) and area is (A=x(100-2x)). For maximum area, \(x=\frac{100}{4}=25\).

Step 3

Exam Tip

यदि चौड़ाई (x) है तो लंबाई (100-2x) और क्षेत्रफल (A=x(100-2x)) है। अधिकतम के लिए \(x=\frac{100}{4}=25\) है।

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किसी संख्या में (7) घटाने पर प्राप्त संख्या का वर्ग (100) है। धनात्मक स्थिति में मूल संख्या क्या है?

When (7) is subtracted from a number, the square of the result is (100). In the positive case, what is the original number?

Explanation opens after your attempt
Correct Answer

C. (17)

Step 1

Concept

((x-7)2=100) and (x-7=10), so (x=17). In square-based questions, read the condition carefully.

Step 2

Why this answer is correct

The correct answer is C. (17). ((x-7)2=100) and (x-7=10), so (x=17). In square-based questions, read the condition carefully.

Step 3

Exam Tip

((x-7)2=100) और (x-7=10), इसलिए (x=17) है। वर्ग वाले प्रश्नों में शर्त ध्यान से पढ़ें।

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किसी संख्या में (3) जोड़ने पर प्राप्त संख्या का वर्ग (100) है। धनात्मक मूल के अनुसार संख्या क्या है?

When (3) is added to a number, the square of the result is (100). According to the positive root, what is the number?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

((x+3)2=100) gives (x+3=10), so (x=7). If the question says positive root, take (10).

Step 2

Why this answer is correct

The correct answer is C. (7). ((x+3)2=100) gives (x+3=10), so (x=7). If the question says positive root, take (10).

Step 3

Exam Tip

((x+3)2=100) से (x+3=10), इसलिए (x=7) है। प्रश्न में धनात्मक मूल कहा हो तो (10) लें।

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यदि (D=100) हो, तो मूलों की प्रकृति के बारे में सही कथन कौन सा है?

If (D=100), which statement about the roots is correct?

Explanation opens after your attempt
Correct Answer

A. मूल वास्तविक, परिमेय और असमान हैंRoots are real, rational, and distinct

Step 1

Concept

(D=100) is a positive perfect square. Therefore the roots will be rational and distinct.

Step 2

Why this answer is correct

The correct answer is A. मूल वास्तविक, परिमेय और असमान हैं / Roots are real, rational, and distinct. (D=100) is a positive perfect square. Therefore the roots will be rational and distinct.

Step 3

Exam Tip

(D=100) धनात्मक पूर्ण वर्ग है। इसलिए मूल परिमेय और असमान होंगे।

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\(x^2-100=0\) में कौनसी पहचान सीधे लागू होती है?

Which identity directly applies to \(x^2-100=0\)?

Explanation opens after your attempt
Correct Answer

A. (a-2-b-2=(a-b)(a+b))

Step 1

Concept

\(100=10^2\), so it is a difference of squares form. In exams, choosing the correct identity is the fastest method.

Step 2

Why this answer is correct

The correct answer is A. (a-2-b-2=(a-b)(a+b)). \(100=10^2\), so it is a difference of squares form. In exams, choosing the correct identity is the fastest method.

Step 3

Exam Tip

\(100=10^2\), इसलिए यह वर्गों के अंतर का रूप है। परीक्षा में सही पहचान चुनना सबसे तेज तरीका है।

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यदि किसी द्विघात समीकरण में (a=1), (b=-20), (c=100) है तो मूल कौन से होंगे?

If a quadratic equation has (a=1), (b=-20), and (c=100), what will be the roots?

Explanation opens after your attempt
Correct Answer

A. (10) और (10)(10) and (10)

Step 1

Concept

The equation is \(x^2-20x+100=0\), which becomes ((x-10)2=0). Therefore both roots are (10).

Step 2

Why this answer is correct

The correct answer is A. (10) और (10) / (10) and (10). The equation is \(x^2-20x+100=0\), which becomes ((x-10)2=0). Therefore both roots are (10).

Step 3

Exam Tip

समीकरण \(x^2-20x+100=0\) है जो ((x-10)2=0) बनता है। इसलिए दोनों मूल (10) हैं।

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निम्न में से कौन सा मान \(x^2-100=0\) का मूल नहीं है?

Which of the following values is not a root of \(x^2-100=0\)?

Explanation opens after your attempt
Correct Answer

C. (0)

Step 1

Concept

The roots of \(x^2-100=0\) are (10) and (-10). Substituting (0) does not make the equation true.

Step 2

Why this answer is correct

The correct answer is C. (0). The roots of \(x^2-100=0\) are (10) and (-10). Substituting (0) does not make the equation true.

Step 3

Exam Tip

\(x^2-100=0\) के मूल (10) और (-10) हैं। (0) रखने पर समीकरण सत्य नहीं होता।

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यदि ((x+a)2=x-2-20x+100) है, तो (a) का मान क्या होगा?

If ((x+a)2=x-2-20x+100), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (-10)

Step 1

Concept

((x+a)2=x-2+2ax+a-2). From (2a=-20), we get (a=-10).

Step 2

Why this answer is correct

The correct answer is A. (-10). ((x+a)2=x-2+2ax+a-2). From (2a=-20), we get (a=-10).

Step 3

Exam Tip

((x+a)2=x-2+2ax+a-2) होता है। (2a=-20) से (a=-10) मिलता है।

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यदि समीकरण \(x^2+bx+100=0\) के दोनों मूल समान हैं और उनका मान (-10) है, तो (b) क्या है?

If both roots of \(x^2+bx+100=0\) are equal and their value is (-10), what is (b)?

Explanation opens after your attempt
Correct Answer

A. (20)

Step 1

Concept

Both roots are (-10), so the sum is (-20). Here the sum of roots is (-b), so (b=20).

Step 2

Why this answer is correct

The correct answer is A. (20). Both roots are (-10), so the sum is (-20). Here the sum of roots is (-b), so (b=20).

Step 3

Exam Tip

दोनों मूल (-10) हैं, इसलिए योग (-20) है। यहाँ मूलों का योग (-b) है, अतः (b=20)।

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कौन सा विकल्प \(\sqrt{99}\) और \(\sqrt{100}\) के बीच एक परिमेय संख्या है?

Which option is a rational number between \(\sqrt{99}\) and \(\sqrt{100}\)?

Explanation opens after your attempt
Correct Answer

A. (9.98)

Step 1

Concept

\(\sqrt{99}\) is about (9.95) and \(\sqrt{100}=10\). (9.98) is a rational number between them.

Step 2

Why this answer is correct

The correct answer is A. (9.98). \(\sqrt{99}\) is about (9.95) and \(\sqrt{100}=10\). (9.98) is a rational number between them.

Step 3

Exam Tip

\(\sqrt{99}\) लगभग (9.95) है और \(\sqrt{100}=10\) है। (9.98) इनके बीच की परिमेय संख्या है।

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यदि (p(x)=x-2+20x+100) है, तो ग्राफ (x)-अक्ष को किस बिंदु पर स्पर्श करेगा?

If (p(x)=x-2+20x+100), at which point will the graph touch the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-10,0))

Step 1

Concept

(x-2+20x+100=(x+10)2), so the touching point is ((-10,0)). Tip: change the sign in a perfect square to get the zero.

Step 2

Why this answer is correct

The correct answer is A. ((-10,0)). (x-2+20x+100=(x+10)2), so the touching point is ((-10,0)). Tip: change the sign in a perfect square to get the zero.

Step 3

Exam Tip

(x-2+20x+100=(x+10)2) है, इसलिए स्पर्श बिंदु ((-10,0)) है। टिप: पूर्ण वर्ग में चिह्न बदलकर शून्यक मिलता है।

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कौन-सी सबसे छोटी संख्या (36), (100) और (150) से पूरी तरह विभाजित होगी?

Which is the smallest number exactly divisible by (36), (100), and (150)?

Explanation opens after your attempt
Correct Answer

A. (900)

Step 1

Concept

Such a smallest number is the LCM of the three numbers.

Step 2

Why this answer is correct

\(36=2^2\times3^2\), \(100=2^2\times5^2\), and \(150=2\times3\times5^2\), so LCM \(=2^2\times3^2\times5^2=900\).

Step 3

Exam Tip

Take the highest power of each prime. चरण 1: ऐसी सबसे छोटी संख्या तीनों संख्याओं का लघुत्तम समापवर्त्य होगी। चरण 2: \(36=2^2\times3^2\), \(100=2^2\times5^2\), \(150=2\times3\times5^2\), इसलिए लघुत्तम समापवर्त्य \(2^2\times3^2\times5^2=900\) है। चरण 3: हर अभाज्य की सबसे बड़ी घात लें।

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कौन-सी सबसे छोटी संख्या (36), (100) और (150) से पूरी तरह विभाजित हो जाएगी?

What is the smallest number exactly divisible by (36), (100), and (150)?

Explanation opens after your attempt
Correct Answer

B. (1800)

Step 1

Concept

The smallest number divisible by all is the LCM.

Step 2

Why this answer is correct

\(36=2^2\times3^2\), \(100=2^2\times5^2\), and \(150=2\times3\times5^2\), so LCM \(=2^2\times3^2\times5^2=900\).

Step 3

Exam Tip

Always verify the final multiplication before choosing an option. चरण 1: सबसे छोटी समान विभाज्य संख्या लघुत्तम समापवर्त्य होती है। चरण 2: \(36=2^2\times3^2\), \(100=2^2\times5^2\), \(150=2\times3\times5^2\), इसलिए लघुत्तम समापवर्त्य \(2^2\times3^2\times5^2=900\) है। चरण 3: विकल्प चुनने से पहले अंतिम गुणन अवश्य जाँचें।

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(75) और (100) का लघुत्तम समापवर्त्य क्या है?

What is the LCM of (75) and (100)?

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Correct Answer

C. (300)

Step 1

Concept

\(75=3\times5^2\) and \(100=2^2\times5^2\).

Step 2

Why this answer is correct

The highest powers are \(2^2\), (3), and \(5^2\).

Step 3

Exam Tip

\(4\times3\times25=300\), so the LCM is (300). चरण 1: \(75=3\times5^2\) और \(100=2^2\times5^2\)। चरण 2: बड़ी घातें \(2^2\), (3) और \(5^2\) हैं। चरण 3: \(4\times3\times25=300\), इसलिए लघुत्तम समापवर्त्य (300) है।

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(75) और (100) का महत्तम समापवर्तक क्या है?

What is the HCF of (75) and (100)?

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Correct Answer

C. (25)

Step 1

Concept

\(75=3\times5^2\) and \(100=2^2\times5^2\).

Step 2

Why this answer is correct

The common prime factor is (5), and the smaller power is \(5^2\).

Step 3

Exam Tip

\(5^2=25\), so the HCF is (25). चरण 1: \(75=3\times5^2\) और \(100=2^2\times5^2\)। चरण 2: समान अभाज्य गुणनखंड (5) है और छोटी घात \(5^2\) है। चरण 3: \(5^2=25\), इसलिए महत्तम समापवर्तक (25) है।

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संख्या 100 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 100?

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Correct Answer

A. \(2^2\times5^2\)

Step 1

Concept

Write \(100=10\times10\).

Step 2

Why this answer is correct

Each 10 is \(2\times5\), so \(100=2^2\times5^2\).

Step 3

Exam Tip

4, 10, and 25 are composite, so do not keep them in the final prime form. चरण 1: \(100=10\times10\) लिखें। चरण 2: हर 10 को \(2\times5\) लिखने पर \(100=2^2\times5^2\) मिलता है। चरण 3: 4, 10 और 25 संयुक्त हैं, इसलिए अंतिम अभाज्य रूप में न रखें।

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किस विकल्प में (999) को (100) से भाग देने का सही यूक्लिडीय रूप है?

Which option gives the correct Euclidean form of dividing (999) by (100)?

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Correct Answer

B. \(999=100\times9+99\)

Step 1

Concept

In standard form, the remainder is not negative.

Step 2

Why this answer is correct

\(100\times9=900\), so (999=900+99), and 99 is less than 100.

Step 3

Exam Tip

A form with a negative remainder may look computationally close, but it is not Euclidean form. चरण 1: मानक रूप में शेषफल नकारात्मक नहीं होता। चरण 2: \(100\times9=900\), इसलिए (999=900+99) और 99, 100 से छोटा है। चरण 3: ऋणात्मक शेषफल वाला रूप गणना जैसा दिख सकता है, पर यूक्लिडीय रूप नहीं है।

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यदि (a=100) और (b=39), तो (a=bq+r) में (q) और (r) क्या होंगे?

If (a=100) and (b=39), what are (q) and (r) in (a=bq+r)?

Explanation opens after your attempt
Correct Answer

B. (q=2, r=22)

Step 1

Concept

\(39 \times 2=78\) and \(39 \times 3=117\).

Step 2

Why this answer is correct

Since (117) is greater, (q=2) and (r=100-78=22).

Step 3

Exam Tip

The remainder must be less than (39). चरण 1: \(39 \times 2=78\) और \(39 \times 3=117\) है। चरण 2: (117) बड़ा है, इसलिए (q=2) और (r=100-78=22)। चरण 3: शेषफल (39) से छोटा होना चाहिए।

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यदि (a=39) और (b=100), तो सही यूक्लिडीय रूप कौन-सा होगा?

If (a=39) and (b=100), which Euclidean form is correct?

Explanation opens after your attempt
Correct Answer

A. \(39=100 \times 0+39\)

Step 1

Concept

(39) is smaller than (100), so the quotient is (0).

Step 2

Why this answer is correct

\(39=100 \times 0+39\), and (39<100), so the form is correct.

Step 3

Exam Tip

If the dividend is smaller, the remainder can be the dividend itself. चरण 1: (39), (100) से छोटा है, इसलिए भागफल (0) होगा। चरण 2: \(39=100 \times 0+39\) और (39<100), इसलिए रूप सही है। चरण 3: भाज्य छोटा हो तो शेषफल वही भाज्य हो सकता है।

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किस विकल्प में (100) को (9) से विभाजित करने पर सही भागफल और शेषफल हैं?

Which option gives the correct quotient and remainder when (100) is divided by (9)?

Explanation opens after your attempt
Correct Answer

A. भागफल (11), शेषफल (1)Quotient (11), remainder (1)

Step 1

Concept

\(9\times11=99\).

Step 2

Why this answer is correct

(100-99=1), so the quotient is (11) and the remainder is (1).

Step 3

Exam Tip

Do not accept options with an oversized remainder in Euclid’s lemma. चरण 1: \(9\times11=99\) है। चरण 2: (100-99=1), इसलिए भागफल (11) और शेषफल (1) है। चरण 3: बड़े शेषफल वाले विकल्प को यूक्लिड प्रमेय में स्वीकार न करें।

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यदि (100) को (9) से भाग दिया जाए तो शेषफल क्या होगा?

What is the remainder when (100) is divided by (9)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

\(9 \times 11=99\).

Step 2

Why this answer is correct

(100-99=1), so the remainder is (1).

Step 3

Exam Tip

Using the nearest smaller multiple helps in quick calculation. चरण 1: \(9 \times 11=99\) है। चरण 2: (100-99=1), इसलिए शेषफल (1) होगा। चरण 3: निकटतम छोटे गुणज का उपयोग तेज गणना में मदद करता है।

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