अनुक्रम \(5,10,20,40,\ldots\) में कौन सा पद (5120) है?

In the sequence \(5,10,20,40,\ldots\), which term is (5120)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (11)वाँ(11)th

Step 1

Concept

\(5\times2^{10}=5120\), so it is the (11)th term. Exam tip: from the first term, the exponent is (n-1).

Step 2

Why this answer is correct

The correct answer is B. (11)वाँ / (11)th. \(5\times2^{10}=5120\), so it is the (11)th term. Exam tip: from the first term, the exponent is (n-1).

Step 3

Exam Tip

\(5\times2^{10}=5120\) है इसलिए यह (11)वाँ पद है। पहले पद से गिनते समय घात (n-1) होती है।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(5,10,20,40,\ldots\) में कौन सा पद (5120) है? / In the sequence \(5,10,20,40,\ldots\), which term is (5120)?

Correct Answer: B. (11)वाँ / (11)th. Explanation: \(5\times2^{10}=5120\) है इसलिए यह (11)वाँ पद है। पहले पद से गिनते समय घात (n-1) होती है। / \(5\times2^{10}=5120\), so it is the (11)th term. Exam tip: from the first term, the exponent is (n-1).

Which concept should I revise for this Mathematics MCQ?

\(5\times2^{10}=5120\), so it is the (11)th term. Exam tip: from the first term, the exponent is (n-1).

What exam hint can help solve this Mathematics question?

\(5\times2^{10}=5120\) है इसलिए यह (11)वाँ पद है। पहले पद से गिनते समय घात (n-1) होती है।