यदि \(a_1=210\) और (a_{n+1}=a_n-(7n+6)) है तो \(a_4\) क्या होगा?

If \(a_1=210\) and (a_{n+1}=a_n-(7n+6)), what is \(a_4\)?

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

A. (150)

Step 1

Concept

The subtracted values are (13,20,27), so \(a_4=150\). Exam tip: calculate (7n+6) before subtracting.

Step 2

Why this answer is correct

The correct answer is A. (150). The subtracted values are (13,20,27), so \(a_4=150\). Exam tip: calculate (7n+6) before subtracting.

Step 3

Exam Tip

घटने वाले मान (13,20,27) हैं इसलिए \(a_4=150\) है। घटाने से पहले (7n+6) निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=210\) और (a_{n+1}=a_n-(7n+6)) है तो \(a_4\) क्या होगा? / If \(a_1=210\) and (a_{n+1}=a_n-(7n+6)), what is \(a_4\)?

Correct Answer: A. (150). Explanation: घटने वाले मान (13,20,27) हैं इसलिए \(a_4=150\) है। घटाने से पहले (7n+6) निकालें। / The subtracted values are (13,20,27), so \(a_4=150\). Exam tip: calculate (7n+6) before subtracting.

Which concept should I revise for this Mathematics MCQ?

The subtracted values are (13,20,27), so \(a_4=150\). Exam tip: calculate (7n+6) before subtracting.

What exam hint can help solve this Mathematics question?

घटने वाले मान (13,20,27) हैं इसलिए \(a_4=150\) है। घटाने से पहले (7n+6) निकालें।