यदि गुणोत्तर श्रेढ़ी में \(a_2=6\) और \(a_4=54\) है, तो \(a_1+a_5\) का मान क्या होगा?

If a geometric progression has \(a_2=6\) and \(a_4=54\), what will be the value of \(a_1+a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (164)

Step 1

Concept

\(a_4=a_2r^2\), so (r=3), \(a_1=2\), and \(a_5=162\), hence the sum is (164). Find (r) first.

Step 2

Why this answer is correct

The correct answer is A. (164). \(a_4=a_2r^2\), so (r=3), \(a_1=2\), and \(a_5=162\), hence the sum is (164). Find (r) first.

Step 3

Exam Tip

\(a_4=a_2r^2\), इसलिए (r=3), \(a_1=2\) और \(a_5=162\), अतः योग (164) है। पहले (r) निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि गुणोत्तर श्रेढ़ी में \(a_2=6\) और \(a_4=54\) है, तो \(a_1+a_5\) का मान क्या होगा? / If a geometric progression has \(a_2=6\) and \(a_4=54\), what will be the value of \(a_1+a_5\)?

Correct Answer: A. (164). Explanation: \(a_4=a_2r^2\), इसलिए (r=3), \(a_1=2\) और \(a_5=162\), अतः योग (164) है। पहले (r) निकालें। / \(a_4=a_2r^2\), so (r=3), \(a_1=2\), and \(a_5=162\), hence the sum is (164). Find (r) first.

Which concept should I revise for this Mathematics MCQ?

\(a_4=a_2r^2\), so (r=3), \(a_1=2\), and \(a_5=162\), hence the sum is (164). Find (r) first.

What exam hint can help solve this Mathematics question?

\(a_4=a_2r^2\), इसलिए (r=3), \(a_1=2\) और \(a_5=162\), अतः योग (164) है। पहले (r) निकालें।