यदि \(a_1=3\) और \(a_{n+1}=2a_n+5\) है तो \(a_4-a_2\) का मान क्या होगा?

If \(a_1=3\) and \(a_{n+1}=2a_n+5\), what is the value of \(a_4-a_2\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (48)

Step 1

Concept

The terms are (3,11,27,59), so \(a_4-a_2=48\). Exam tip: find both terms first and subtract.

Step 2

Why this answer is correct

The correct answer is C. (48). The terms are (3,11,27,59), so \(a_4-a_2=48\). Exam tip: find both terms first and subtract.

Step 3

Exam Tip

पद (3,11,27,59) हैं इसलिए \(a_4-a_2=48\) है। पहले दोनों पद निकालकर घटाएँ।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=3\) और \(a_{n+1}=2a_n+5\) है तो \(a_4-a_2\) का मान क्या होगा? / If \(a_1=3\) and \(a_{n+1}=2a_n+5\), what is the value of \(a_4-a_2\)?

Correct Answer: C. (48). Explanation: पद (3,11,27,59) हैं इसलिए \(a_4-a_2=48\) है। पहले दोनों पद निकालकर घटाएँ। / The terms are (3,11,27,59), so \(a_4-a_2=48\). Exam tip: find both terms first and subtract.

Which concept should I revise for this Mathematics MCQ?

The terms are (3,11,27,59), so \(a_4-a_2=48\). Exam tip: find both terms first and subtract.

What exam hint can help solve this Mathematics question?

पद (3,11,27,59) हैं इसलिए \(a_4-a_2=48\) है। पहले दोनों पद निकालकर घटाएँ।