गुणोत्तर श्रेणी \(3,15,75,\ldots\) का वह पद कौन-सा है जो (9375) है?

Which term of the geometric progression \(3,15,75,\ldots\) is (9375)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. छठा पद(6)th term

Step 1

Concept

From \(3\cdot5^{n-1}=9375\), \(5^{n-1}=3125=5^5\), so (n=6). In exams, compare powers to find the term number.

Step 2

Why this answer is correct

The correct answer is B. छठा पद / (6)th term. From \(3\cdot5^{n-1}=9375\), \(5^{n-1}=3125=5^5\), so (n=6). In exams, compare powers to find the term number.

Step 3

Exam Tip

\(3\cdot5^{n-1}=9375\) से \(5^{n-1}=3125=5^5\), इसलिए (n=6) है। परीक्षा में पद संख्या के लिए घात की तुलना करें।

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Mathematics Answer, Explanation and Revision Hints

गुणोत्तर श्रेणी \(3,15,75,\ldots\) का वह पद कौन-सा है जो (9375) है? / Which term of the geometric progression \(3,15,75,\ldots\) is (9375)?

Correct Answer: B. छठा पद / (6)th term. Explanation: \(3\cdot5^{n-1}=9375\) से \(5^{n-1}=3125=5^5\), इसलिए (n=6) है। परीक्षा में पद संख्या के लिए घात की तुलना करें। / From \(3\cdot5^{n-1}=9375\), \(5^{n-1}=3125=5^5\), so (n=6). In exams, compare powers to find the term number.

Which concept should I revise for this Mathematics MCQ?

From \(3\cdot5^{n-1}=9375\), \(5^{n-1}=3125=5^5\), so (n=6). In exams, compare powers to find the term number.

What exam hint can help solve this Mathematics question?

\(3\cdot5^{n-1}=9375\) से \(5^{n-1}=3125=5^5\), इसलिए (n=6) है। परीक्षा में पद संख्या के लिए घात की तुलना करें।