यदि \(a_2=24\), \(r=\frac{1}{2}\) है, तो \(a_5\) क्या होगा?
If \(a_2=24\) and \(r=\frac{1}{2}\), what will be \(a_5\)?
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B. 3
Simple Explanation
ज्यामितीय प्रगति में \(a_n=a_m r^{n-m}\) होता है। इसलिए \(a_5=a_2r^{5-2}=24\left(\frac{1}{2}\right)^3=24\times\frac{1}{8}=3\)। ध्यान रखें कि \(a_4=6\) है, इसलिए 6 निकटतम distractor है; \(a_5\) के लिए तीन बार अनुपात से गुणा करना होगा। / For a geometric progression, \(a_n=a_m r^{n-m}\). Hence, \(a_5=a_2r^{5-2}=24\left(\frac{1}{2}\right)^3=24\times\frac{1}{8}=3\). Note that \(a_4=6\), so 6 is a close distractor; to reach \(a_5\) from \(a_2\), multiply by the common ratio three times.
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