यदि \(a_1=10\) और \(a_{n+1}=a_n+n+2\) है तो \(a_4\) क्या होगा?

If \(a_1=10\) and \(a_{n+1}=a_n+n+2\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (21)

Step 1

Concept

The terms are (10,13,17,22), so \(a_4=22\). None of the listed options is correct.

Step 2

Why this answer is correct

The correct answer is B. (21). The terms are (10,13,17,22), so \(a_4=22\). None of the listed options is correct.

Step 3

Exam Tip

पद (10,13,17,22) नहीं बल्कि \(a_4=22\) है। दिए गए विकल्पों में सही मान नहीं है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=10\) और \(a_{n+1}=a_n+n+2\) है तो \(a_4\) क्या होगा? / If \(a_1=10\) and \(a_{n+1}=a_n+n+2\), what is \(a_4\)?

Correct Answer: B. (21). Explanation: पद (10,13,17,22) नहीं बल्कि \(a_4=22\) है। दिए गए विकल्पों में सही मान नहीं है। / The terms are (10,13,17,22), so \(a_4=22\). None of the listed options is correct.

Which concept should I revise for this Mathematics MCQ?

The terms are (10,13,17,22), so \(a_4=22\). None of the listed options is correct.

What exam hint can help solve this Mathematics question?

पद (10,13,17,22) नहीं बल्कि \(a_4=22\) है। दिए गए विकल्पों में सही मान नहीं है।