यदि समांतर श्रेणी में \(a_3+a_9=72\) है, तो \(a_6\) क्या होगा?

If in an arithmetic progression \(a_3+a_9=72\), what is \(a_6\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (36)

Step 1

Concept

\(a_6\) is equidistant from \(a_3\) and \(a_9\), so \(a_6=\frac{72}{2}=36\). The average of symmetric terms is the middle term.

Step 2

Why this answer is correct

The correct answer is C. (36). \(a_6\) is equidistant from \(a_3\) and \(a_9\), so \(a_6=\frac{72}{2}=36\). The average of symmetric terms is the middle term.

Step 3

Exam Tip

\(a_3\) और \(a_9\) से \(a_6\) समान दूरी पर है, इसलिए \(a_6=\frac{72}{2}=36\)। सममित पदों का औसत मध्य पद होता है।

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Mathematics Answer, Explanation and Revision Hints

यदि समांतर श्रेणी में \(a_3+a_9=72\) है, तो \(a_6\) क्या होगा? / If in an arithmetic progression \(a_3+a_9=72\), what is \(a_6\)?

Correct Answer: C. (36). Explanation: \(a_3\) और \(a_9\) से \(a_6\) समान दूरी पर है, इसलिए \(a_6=\frac{72}{2}=36\)। सममित पदों का औसत मध्य पद होता है। / \(a_6\) is equidistant from \(a_3\) and \(a_9\), so \(a_6=\frac{72}{2}=36\). The average of symmetric terms is the middle term.

Which concept should I revise for this Mathematics MCQ?

\(a_6\) is equidistant from \(a_3\) and \(a_9\), so \(a_6=\frac{72}{2}=36\). The average of symmetric terms is the middle term.

What exam hint can help solve this Mathematics question?

\(a_3\) और \(a_9\) से \(a_6\) समान दूरी पर है, इसलिए \(a_6=\frac{72}{2}=36\)। सममित पदों का औसत मध्य पद होता है।