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)?
Explanation opens after your attempt
B. छठा पद(6)th term
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.
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.
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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