यदि \(a_1=180\) और (a_{n+1}=a_n-(6n+5)) है तो \(a_4\) क्या होगा?

If \(a_1=180\) and (a_{n+1}=a_n-(6n+5)), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (136)

Step 1

Concept

The subtracted values are (11,17,23), so \(a_4=129\). Exam tip: calculate the linear subtraction before subtracting.

Step 2

Why this answer is correct

The correct answer is A. (136). The subtracted values are (11,17,23), so \(a_4=129\). Exam tip: calculate the linear subtraction before subtracting.

Step 3

Exam Tip

घटने वाले मान (11,17,23) हैं इसलिए \(a_4=129\) है। सही विकल्पों में (129) होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=180\) और (a_{n+1}=a_n-(6n+5)) है तो \(a_4\) क्या होगा? / If \(a_1=180\) and (a_{n+1}=a_n-(6n+5)), what is \(a_4\)?

Correct Answer: A. (136). Explanation: घटने वाले मान (11,17,23) हैं इसलिए \(a_4=129\) है। सही विकल्पों में (129) होना चाहिए। / The subtracted values are (11,17,23), so \(a_4=129\). Exam tip: calculate the linear subtraction before subtracting.

Which concept should I revise for this Mathematics MCQ?

The subtracted values are (11,17,23), so \(a_4=129\). Exam tip: calculate the linear subtraction before subtracting.

What exam hint can help solve this Mathematics question?

घटने वाले मान (11,17,23) हैं इसलिए \(a_4=129\) है। सही विकल्पों में (129) होना चाहिए।