यदि \(a_1=5\) और \(a_{n+1}=2a_n\) है तो \(a_3\) का मान क्या है?

If \(a_1=5\) and \(a_{n+1}=2a_n\), what is the value of \(a_3\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. (20)

Step 1

Concept

The terms are (5,10,20), so \(a_3=20\). Exam tip: multiply the previous term by (2) each time.

Step 2

Why this answer is correct

The correct answer is A. (20). The terms are (5,10,20), so \(a_3=20\). Exam tip: multiply the previous term by (2) each time.

Step 3

Exam Tip

पद (5,10,20) हैं इसलिए \(a_3=20\) है। हर बार पिछले पद को (2) से गुणा करें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=5\) और \(a_{n+1}=2a_n\) है तो \(a_3\) का मान क्या है? / If \(a_1=5\) and \(a_{n+1}=2a_n\), what is the value of \(a_3\)?

Correct Answer: A. (20). Explanation: पद (5,10,20) हैं इसलिए \(a_3=20\) है। हर बार पिछले पद को (2) से गुणा करें। / The terms are (5,10,20), so \(a_3=20\). Exam tip: multiply the previous term by (2) each time.

Which concept should I revise for this Mathematics MCQ?

The terms are (5,10,20), so \(a_3=20\). Exam tip: multiply the previous term by (2) each time.

What exam hint can help solve this Mathematics question?

पद (5,10,20) हैं इसलिए \(a_3=20\) है। हर बार पिछले पद को (2) से गुणा करें।