यदि \(a_1=4\) और \(a_{n+1}=2a_n+5\) है तो \(a_4\) क्या होगा?

If \(a_1=4\) and \(a_{n+1}=2a_n+5\), what is \(a_4\)?

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

A. (61)

Step 1

Concept

The terms are (4,13,31,67), so \(a_4=67\). The correct option should include (67).

Step 2

Why this answer is correct

The correct answer is A. (61). The terms are (4,13,31,67), so \(a_4=67\). The correct option should include (67).

Step 3

Exam Tip

पद (4,13,31,67) नहीं बल्कि \(a_4=67\) है। सही विकल्प में (67) होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=4\) और \(a_{n+1}=2a_n+5\) है तो \(a_4\) क्या होगा? / If \(a_1=4\) and \(a_{n+1}=2a_n+5\), what is \(a_4\)?

Correct Answer: A. (61). Explanation: पद (4,13,31,67) नहीं बल्कि \(a_4=67\) है। सही विकल्प में (67) होना चाहिए। / The terms are (4,13,31,67), so \(a_4=67\). The correct option should include (67).

Which concept should I revise for this Mathematics MCQ?

The terms are (4,13,31,67), so \(a_4=67\). The correct option should include (67).

What exam hint can help solve this Mathematics question?

पद (4,13,31,67) नहीं बल्कि \(a_4=67\) है। सही विकल्प में (67) होना चाहिए।