गुणोत्तर श्रेढ़ी \(160,80,40,20,\ldots\) में \(\frac{5}{2}\) कौन-सा पद है?
In the geometric progression \(160,80,40,20,\ldots\), which term is \(\frac{5}{2}\)?
Explanation opens after your attempt
Correct Answer
B. (7)वाँ(7)th
Concept
The terms are \(160,80,40,20,10,5,\frac{5}{2}\), so it is the seventh term. In a decreasing progression, multiply repeatedly by the ratio.
Why this answer is correct
The correct answer is B. (7)वाँ / (7)th. The terms are \(160,80,40,20,10,5,\frac{5}{2}\), so it is the seventh term. In a decreasing progression, multiply repeatedly by the ratio.
Exam Tip
पद \(160,80,40,20,10,5,\frac{5}{2}\) हैं, इसलिए यह सातवाँ पद है। घटती श्रेढ़ी में अनुपात से बार-बार गुणा करें।
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