अनुक्रम \(25,20,15,10,\ldots\) के लिए सही recursive rule कौन सा है?

Which recursive rule is correct for the sequence \(25,20,15,10,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. \(a_1=25, a_{n+1}=a_n-5\)

Step 1

Concept

The first term is (25), and (5) is subtracted each time. Exam tip: watch the (-) sign in decreasing sequences.

Step 2

Why this answer is correct

The correct answer is C. \(a_1=25, a_{n+1}=a_n-5\). The first term is (25), and (5) is subtracted each time. Exam tip: watch the (-) sign in decreasing sequences.

Step 3

Exam Tip

पहला पद (25) है और हर बार (5) घटता है। घटते अनुक्रम में (-) चिह्न देखें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(25,20,15,10,\ldots\) के लिए सही recursive rule कौन सा है? / Which recursive rule is correct for the sequence \(25,20,15,10,\ldots\)?

Correct Answer: C. \(a_1=25, a_{n+1}=a_n-5\). Explanation: पहला पद (25) है और हर बार (5) घटता है। घटते अनुक्रम में (-) चिह्न देखें। / The first term is (25), and (5) is subtracted each time. Exam tip: watch the (-) sign in decreasing sequences.

Which concept should I revise for this Mathematics MCQ?

The first term is (25), and (5) is subtracted each time. Exam tip: watch the (-) sign in decreasing sequences.

What exam hint can help solve this Mathematics question?

पहला पद (25) है और हर बार (5) घटता है। घटते अनुक्रम में (-) चिह्न देखें।