किसी गुणोत्तर श्रेणी में \(a_3=24\) और \(a_6=192\) हैं। यदि (r>0) है, तो पहले (5) पदों का योग क्या होगा?

In a geometric progression, \(a_3=24\) and \(a_6=192\). If (r>0), what is the sum of the first (5) terms?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (186)

Step 1

Concept

From \(\frac{192}{24}=r^3=8\), (r=2) and (a=6). Therefore (S_5=6\(2^5-1\)=186).

Step 2

Why this answer is correct

The correct answer is B. (186). From \(\frac{192}{24}=r^3=8\), (r=2) and (a=6). Therefore (S_5=6\(2^5-1\)=186).

Step 3

Exam Tip

\(\frac{192}{24}=r^3=8\) से (r=2) और (a=6) है। इसलिए (S_5=6\(2^5-1\)=186) होगा।

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किसी गुणोत्तर श्रेणी में \(a_3=24\) और \(a_6=192\) हैं। यदि (r>0) है, तो पहले (5) पदों का योग क्या होगा? / In a geometric progression, \(a_3=24\) and \(a_6=192\). If (r>0), what is the sum of the first (5) terms?

Correct Answer: B. (186). Explanation: \(\frac{192}{24}=r^3=8\) से (r=2) और (a=6) है। इसलिए (S_5=6\(2^5-1\)=186) होगा। / From \(\frac{192}{24}=r^3=8\), (r=2) and (a=6). Therefore (S_5=6\(2^5-1\)=186).

Which concept should I revise for this Mathematics MCQ?

From \(\frac{192}{24}=r^3=8\), (r=2) and (a=6). Therefore (S_5=6\(2^5-1\)=186).

What exam hint can help solve this Mathematics question?

\(\frac{192}{24}=r^3=8\) से (r=2) और (a=6) है। इसलिए (S_5=6\(2^5-1\)=186) होगा।