यदि \(a_1=90\) और \(a_{n+1}=\frac{a_n}{3}\) है तो \(a_4\) क्या होगा?

If \(a_1=90\) and \(a_{n+1}=\frac{a_n}{3}\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (10)

Step 1

Concept

The terms are \(90,30,10,\frac{10}{3}\), so \(a_4=\frac{10}{3}\). None of the listed options is correct.

Step 2

Why this answer is correct

The correct answer is B. (10). The terms are \(90,30,10,\frac{10}{3}\), so \(a_4=\frac{10}{3}\). None of the listed options is correct.

Step 3

Exam Tip

पद \(90,30,10,\frac{10}{3}\) नहीं बल्कि \(a_3=10\) और \(a_4=\frac{10}{3}\) है। इसलिए विकल्पों में सही मान नहीं है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=90\) और \(a_{n+1}=\frac{a_n}{3}\) है तो \(a_4\) क्या होगा? / If \(a_1=90\) and \(a_{n+1}=\frac{a_n}{3}\), what is \(a_4\)?

Correct Answer: B. (10). Explanation: पद \(90,30,10,\frac{10}{3}\) नहीं बल्कि \(a_3=10\) और \(a_4=\frac{10}{3}\) है। इसलिए विकल्पों में सही मान नहीं है। / The terms are \(90,30,10,\frac{10}{3}\), so \(a_4=\frac{10}{3}\). None of the listed options is correct.

Which concept should I revise for this Mathematics MCQ?

The terms are \(90,30,10,\frac{10}{3}\), so \(a_4=\frac{10}{3}\). None of the listed options is correct.

What exam hint can help solve this Mathematics question?

पद \(90,30,10,\frac{10}{3}\) नहीं बल्कि \(a_3=10\) और \(a_4=\frac{10}{3}\) है। इसलिए विकल्पों में सही मान नहीं है।