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

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

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (8)

Step 1

Concept

The terms are (2,3,5,8), so \(a_4=8\). Exam tip: the value of (n) changes at each step.

Step 2

Why this answer is correct

The correct answer is C. (8). The terms are (2,3,5,8), so \(a_4=8\). Exam tip: the value of (n) changes at each step.

Step 3

Exam Tip

पद (2,3,5,8) हैं इसलिए \(a_4=8\) है। यहाँ (n) का मान हर चरण में बदलता है।

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Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: C. (8). Explanation: पद (2,3,5,8) हैं इसलिए \(a_4=8\) है। यहाँ (n) का मान हर चरण में बदलता है। / The terms are (2,3,5,8), so \(a_4=8\). Exam tip: the value of (n) changes at each step.

Which concept should I revise for this Mathematics MCQ?

The terms are (2,3,5,8), so \(a_4=8\). Exam tip: the value of (n) changes at each step.

What exam hint can help solve this Mathematics question?

पद (2,3,5,8) हैं इसलिए \(a_4=8\) है। यहाँ (n) का मान हर चरण में बदलता है।