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terminating-condition MCQ Questions for Class 10

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Practice Questions

13 questions tagged with terminating-condition.

Question 1/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

यदि (n) सबसे छोटा धनात्मक पूर्णांक है जिससे \(\frac{n}{2^4\cdot 5\cdot 7^3\cdot 11}\) का दशमलव सांत हो तो (n) क्या होगा?

If (n) is the smallest positive integer for which \(\frac{n}{2^4\cdot 5\cdot 7^3\cdot 11}\) has a terminating decimal, what is (n)?

Explanation opens after your attempt
Correct Answer

A. (3773)

Step 1

Concept

The factors \(7^3\) and (11) must be removed from the reduced denominator, so \(n=7^3\cdot 11=3773\). For the least value, do not cancel (2) and (5).

Step 2

Why this answer is correct

The correct answer is A. (3773). The factors \(7^3\) and (11) must be removed from the reduced denominator, so \(n=7^3\cdot 11=3773\). For the least value, do not cancel (2) and (5).

Step 3

Exam Tip

सरलतम हर से \(7^3\) और (11) हटने चाहिए इसलिए \(n=7^3\cdot 11=3773\) होगा। न्यूनतम मान में (2) और (5) को काटना जरूरी नहीं है।

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Question 2/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

यदि \(\frac{a}{2^6\cdot 3\cdot 5^4\cdot 7\cdot 13}\) का दशमलव सांत हो तो (a) में कम से कम कौन-सा गुणनखंड होना चाहिए?

If \(\frac{a}{2^6\cdot 3\cdot 5^4\cdot 7\cdot 13}\) is to have a terminating decimal, what factor must (a) contain at minimum?

Explanation opens after your attempt
Correct Answer

B. (273)

Step 1

Concept

The factors (3), (7), and (13) must be removed from the reduced denominator, so the minimum factor is \(3\cdot 7\cdot 13=273\). Factors (2) and (5) may remain.

Step 2

Why this answer is correct

The correct answer is B. (273). The factors (3), (7), and (13) must be removed from the reduced denominator, so the minimum factor is \(3\cdot 7\cdot 13=273\). Factors (2) and (5) may remain.

Step 3

Exam Tip

सरलतम हर से (3), (7) और (13) हटने चाहिए इसलिए न्यूनतम गुणनखंड \(3\cdot 7\cdot 13=273\) है। (2) और (5) हर में रह सकते हैं।

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Question 3/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

यदि \(\frac{a}{2^5\cdot 3^4\cdot 5^2\cdot 19}\) का दशमलव सांत हो तो (a) में कम से कम कौन-सा गुणनखंड होना चाहिए?

If \(\frac{a}{2^5\cdot 3^4\cdot 5^2\cdot 19}\) is to have a terminating decimal, what factor must (a) contain at minimum?

Explanation opens after your attempt
Correct Answer

B. (1539)

Step 1

Concept

The factors \(3^4\) and (19) must be removed from the reduced denominator, so the minimum factor is \(81\cdot 19=1539\). Factors (2) and (5) may remain.

Step 2

Why this answer is correct

The correct answer is B. (1539). The factors \(3^4\) and (19) must be removed from the reduced denominator, so the minimum factor is \(81\cdot 19=1539\). Factors (2) and (5) may remain.

Step 3

Exam Tip

सरलतम हर से \(3^4\) और (19) हटने चाहिए इसलिए न्यूनतम गुणनखंड \(81\cdot 19=1539\) है। (2) और (5) हर में रह सकते हैं।

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Question 4/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

यदि (n) सबसे छोटा धनात्मक पूर्णांक है जिससे \(\frac{n}{2^3\cdot 3^2\cdot 5^4\cdot 17^2}\) का दशमलव सांत हो तो (n) क्या होगा?

If (n) is the smallest positive integer for which \(\frac{n}{2^3\cdot 3^2\cdot 5^4\cdot 17^2}\) has a terminating decimal, what is (n)?

Explanation opens after your attempt
Correct Answer

C. (2601)

Step 1

Concept

For termination, \(3^2\) and \(17^2\) must cancel completely, so (n=2601). For the least value, cancel only the factors other than (2) and (5).

Step 2

Why this answer is correct

The correct answer is C. (2601). For termination, \(3^2\) and \(17^2\) must cancel completely, so (n=2601). For the least value, cancel only the factors other than (2) and (5).

Step 3

Exam Tip

सांत दशमलव के लिए \(3^2\) और \(17^2\) पूरी तरह कटने चाहिए इसलिए (n=2601) होगा। न्यूनतम मान में केवल (2) और (5) के अलावा गुणनखंड काटें।

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Question 5/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

यदि \(\frac{a}{2^4\cdot 3^3\cdot 5^2\cdot 23}\) का दशमलव सांत हो तो (a) में कम से कम कौन-सा गुणनखंड होना चाहिए?

If \(\frac{a}{2^4\cdot 3^3\cdot 5^2\cdot 23}\) is to have a terminating decimal, what factor must (a) contain at minimum?

Explanation opens after your attempt
Correct Answer

B. (621)

Step 1

Concept

The factors \(3^3\) and (23) must be removed from the reduced denominator, so the minimum factor is \(27\cdot 23=621\). Factors (2) and (5) may remain.

Step 2

Why this answer is correct

The correct answer is B. (621). The factors \(3^3\) and (23) must be removed from the reduced denominator, so the minimum factor is \(27\cdot 23=621\). Factors (2) and (5) may remain.

Step 3

Exam Tip

सरलतम हर से \(3^3\) और (23) हटने चाहिए इसलिए न्यूनतम गुणनखंड \(27\cdot 23=621\) है। (2) और (5) हर में रह सकते हैं।

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Question 6/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

यदि (n) सबसे छोटा धनात्मक पूर्णांक है जिससे \(\frac{n}{2^5\cdot 3^2\cdot 5^3\cdot 7^2}\) का दशमलव सांत हो तो (n) क्या होगा?

If (n) is the smallest positive integer for which \(\frac{n}{2^5\cdot 3^2\cdot 5^3\cdot 7^2}\) has a terminating decimal, what is (n)?

Explanation opens after your attempt
Correct Answer

C. (441)

Step 1

Concept

For termination, \(3^2\) and \(7^2\) must cancel completely, so (n=441). For the least value, cancel only the factors other than (2) and (5).

Step 2

Why this answer is correct

The correct answer is C. (441). For termination, \(3^2\) and \(7^2\) must cancel completely, so (n=441). For the least value, cancel only the factors other than (2) and (5).

Step 3

Exam Tip

सांत दशमलव के लिए \(3^2\) और \(7^2\) पूरी तरह कटने चाहिए इसलिए (n=441) होगा। न्यूनतम मान में केवल (2) और (5) के अलावा गुणनखंड काटें।

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Question 7/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 19

यदि \(\frac{a}{2^3\cdot 3^2\cdot 5^4\cdot 17}\) का दशमलव सांत हो, तो (a) में कम से कम कौन-सा गुणनखंड होना चाहिए?

If \(\frac{a}{2^3\cdot 3^2\cdot 5^4\cdot 17}\) is to have a terminating decimal, what factor must (a) contain at minimum?

Explanation opens after your attempt
Correct Answer

A. (153)

Step 1

Concept

The factors \(3^2\) and (17) must be removed from the reduced denominator, so the minimum factor is \(3^2\cdot 17=153\). Factors (2) and (5) may remain.

Step 2

Why this answer is correct

The correct answer is A. (153). The factors \(3^2\) and (17) must be removed from the reduced denominator, so the minimum factor is \(3^2\cdot 17=153\). Factors (2) and (5) may remain.

Step 3

Exam Tip

सरलतम हर से \(3^2\) और (17) हटने चाहिए, इसलिए न्यूनतम गुणनखंड \(3^2\cdot 17=153\) है। (2) और (5) हर में रह सकते हैं।

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Question 8/13 Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 19

यदि (n) सबसे छोटा धनात्मक पूर्णांक है जिससे \(\frac{n}{2^2\cdot 3^4\cdot 5\cdot 13}\) का दशमलव सांत हो, तो (n) क्या होगा?

If (n) is the smallest positive integer for which \(\frac{n}{2^2\cdot 3^4\cdot 5\cdot 13}\) has a terminating decimal, what is (n)?

Explanation opens after your attempt
Correct Answer

C. (1053)

Step 1

Concept

For a terminating decimal, \(3^4\) and (13) must cancel completely, so \(n=3^4\cdot 13=1053\). For the least value, cancel only the unwanted prime factors.

Step 2

Why this answer is correct

The correct answer is C. (1053). For a terminating decimal, \(3^4\) and (13) must cancel completely, so \(n=3^4\cdot 13=1053\). For the least value, cancel only the unwanted prime factors.

Step 3

Exam Tip

सांत दशमलव के लिए \(3^4\) और (13) पूरी तरह कटने चाहिए, इसलिए \(n=3^4\cdot 13=1053\)। न्यूनतम मान में केवल अनचाहे अभाज्य गुणनखंड काटें।

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Question 9/13 Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

यदि \(\frac{x}{540}\) का दशमलव प्रसार सांत है, तो (x) में कम से कम कौन-सा गुणनखंड अवश्य होगा?

If \(\frac{x}{540}\) has a terminating decimal expansion, what factor must (x) contain at minimum?

Explanation opens after your attempt
Correct Answer

B. (27)

Step 1

Concept

\(540=2^2\cdot 3^3\cdot 5\).

Step 2

Why this answer is correct

For a terminating decimal, \(3^3\) must cancel completely from the denominator. So (x) must contain (27).

Step 3

Exam Tip

(2) and (5) may remain, but (3) must not. चरण 1: \(540=2^2\cdot 3^3\cdot 5\) है। चरण 2: सांत दशमलव के लिए सरलतम हर से \(3^3\) पूरी तरह कटना चाहिए। इसलिए (x) में (27) अवश्य होना चाहिए। चरण 3: (2) और (5) रह सकते हैं, पर (3) नहीं।

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Question 10/13 Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

यदि (n) सबसे छोटा धनात्मक पूर्णांक है जिससे \(\frac{n}{2^4\cdot 3^3\cdot 5^2\cdot 11}\) का दशमलव प्रसार सांत हो, तो (n) क्या होगा?

If (n) is the smallest positive integer for which \(\frac{n}{2^4\cdot 3^3\cdot 5^2\cdot 11}\) has a terminating decimal expansion, what is (n)?

Explanation opens after your attempt
Correct Answer

C. (297)

Step 1

Concept

For a terminating decimal, the reduced denominator must contain only (2) and (5).

Step 2

Why this answer is correct

The factors \(3^3\) and (11) must be cancelled, so the least (n) is \(3^3\cdot 11=297\).

Step 3

Exam Tip

For the smallest value, cancel only the unwanted prime factors. चरण 1: सांत दशमलव के लिए सरलतम हर में केवल (2) और (5) रहने चाहिए। चरण 2: हर में \(3^3\) और (11) हटाने होंगे, इसलिए \(n=3^3\cdot 11=297\) न्यूनतम है। चरण 3: सबसे छोटा मान पूछे तो केवल अनचाहे अभाज्य गुणनखंड काटिए।

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Question 11/13 Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

\(\frac{a}{2310}\) का दशमलव प्रसार सांत हो, इसके लिए (a) में कम से कम कौन-सा गुणनखंड होना चाहिए?

For \(\frac{a}{2310}\) to have a terminating decimal expansion, what factor must (a) contain at minimum?

Explanation opens after your attempt
Correct Answer

C. (231)

Step 1

Concept

\(2310=2\cdot 3\cdot 5\cdot 7\cdot 11\).

Step 2

Why this answer is correct

For a terminating decimal, (3), (7), and (11) must cancel from the denominator. So the minimum factor is \(3\cdot 7\cdot 11=231\).

Step 3

Exam Tip

(2) and (5) may remain, but other prime factors must not. चरण 1: \(2310=2\cdot 3\cdot 5\cdot 7\cdot 11\) है। चरण 2: सांत दशमलव के लिए (3), (7), और (11) हर से कटने चाहिए। इसलिए न्यूनतम गुणनखंड \(3\cdot 7\cdot 11=231\) है। चरण 3: (2) और (5) रह सकते हैं, पर अन्य अभाज्य गुणनखंड नहीं।

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Question 12/13 Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

यदि \(\frac{m}{735}\) का दशमलव प्रसार सांत है, तो (m) में कम से कम कौन-सा गुणनखंड अवश्य होना चाहिए?

If \(\frac{m}{735}\) has a terminating decimal expansion, what factor must (m) contain at minimum?

Explanation opens after your attempt
Correct Answer

C. (147)

Step 1

Concept

\(735=3\cdot 5\cdot 7^2\).

Step 2

Why this answer is correct

For a terminating decimal, (3) and \(7^2\) must not remain in the reduced denominator. So (m) must contain \(3\cdot 7^2=147\).

Step 3

Exam Tip

The factor (5) may remain, but (3) and (7) must cancel. चरण 1: \(735=3\cdot 5\cdot 7^2\) है। चरण 2: सांत दशमलव के लिए सरलतम हर में (3) और \(7^2\) नहीं बचने चाहिए। इसलिए (m) में \(3\cdot 7^2=147\) अवश्य होना चाहिए। चरण 3: (5) हर में रह सकता है, पर (3) और (7) कटने चाहिए।

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Question 13/13 Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 19

\(\frac{a}{2^3\cdot 5^2\cdot 13}\) का दशमलव सांत हो, इसके लिए (a) में कम से कम कौन-सा गुणनखंड होना चाहिए?

For \(\frac{a}{2^3\cdot 5^2\cdot 13}\) to have a terminating decimal, what factor must (a) contain at minimum?

Explanation opens after your attempt
Correct Answer

C. (13)

Step 1

Concept

The denominator contains (2), (5), and (13).

Step 2

Why this answer is correct

For a terminating decimal, (13) must not remain in the reduced denominator. So (a) must contain the factor (13).

Step 3

Exam Tip

Powers of (2) and (5) may remain, but other prime factors must cancel. चरण 1: हर में (2), (5), और (13) हैं। चरण 2: सांत दशमलव के लिए सरलतम हर में (13) नहीं बचना चाहिए। इसलिए (a) में (13) का गुणनखंड अवश्य होना चाहिए। चरण 3: (2) और (5) रह सकते हैं, पर अन्य अभाज्य गुणनखंड कटने चाहिए।

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