यदि \(a_1=120\) और (a_{n+1}=a_n-(3n+2)) है तो \(a_4\) क्या होगा?

If \(a_1=120\) and (a_{n+1}=a_n-(3n+2)), what is \(a_4\)?

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

A. (96)

Step 1

Concept

The terms are (120,115,107,96), so \(a_4=96\). Exam tip: calculate (3n+2) before subtracting.

Step 2

Why this answer is correct

The correct answer is A. (96). The terms are (120,115,107,96), so \(a_4=96\). Exam tip: calculate (3n+2) before subtracting.

Step 3

Exam Tip

पद (120,115,107,96) हैं इसलिए \(a_4=96\) है। घटाने से पहले (3n+2) निकालें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=120\) और (a_{n+1}=a_n-(3n+2)) है तो \(a_4\) क्या होगा? / If \(a_1=120\) and (a_{n+1}=a_n-(3n+2)), what is \(a_4\)?

Correct Answer: A. (96). Explanation: पद (120,115,107,96) हैं इसलिए \(a_4=96\) है। घटाने से पहले (3n+2) निकालें। / The terms are (120,115,107,96), so \(a_4=96\). Exam tip: calculate (3n+2) before subtracting.

Which concept should I revise for this Mathematics MCQ?

The terms are (120,115,107,96), so \(a_4=96\). Exam tip: calculate (3n+2) before subtracting.

What exam hint can help solve this Mathematics question?

पद (120,115,107,96) हैं इसलिए \(a_4=96\) है। घटाने से पहले (3n+2) निकालें।