यदि \(a_1=50\) और (a_{n+1}=a_n-(2n+3)) है तो \(a_5\) क्या होगा?

If \(a_1=50\) and (a_{n+1}=a_n-(2n+3)), what is \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (18)

Step 1

Concept

The terms are (50,45,38,29,18), so \(a_5=18\). Exam tip: calculate (2n+3) before subtracting.

Step 2

Why this answer is correct

The correct answer is A. (18). The terms are (50,45,38,29,18), so \(a_5=18\). Exam tip: calculate (2n+3) before subtracting.

Step 3

Exam Tip

पद (50,45,38,29,18) हैं इसलिए \(a_5=18\) है। घटाने से पहले (2n+3) का मान सही निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=50\) और (a_{n+1}=a_n-(2n+3)) है तो \(a_5\) क्या होगा? / If \(a_1=50\) and (a_{n+1}=a_n-(2n+3)), what is \(a_5\)?

Correct Answer: A. (18). Explanation: पद (50,45,38,29,18) हैं इसलिए \(a_5=18\) है। घटाने से पहले (2n+3) का मान सही निकालें। / The terms are (50,45,38,29,18), so \(a_5=18\). Exam tip: calculate (2n+3) before subtracting.

Which concept should I revise for this Mathematics MCQ?

The terms are (50,45,38,29,18), so \(a_5=18\). Exam tip: calculate (2n+3) before subtracting.

What exam hint can help solve this Mathematics question?

पद (50,45,38,29,18) हैं इसलिए \(a_5=18\) है। घटाने से पहले (2n+3) का मान सही निकालें।