समांतर श्रेणी में \(a_3=16\) और \(a_{11}=72\) है। \(a_7\) का मान क्या होगा?

In an arithmetic progression, \(a_3=16\) and \(a_{11}=72\). What is the value of \(a_7\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (44)

Step 1

Concept

\(a_{11}-a_3=8d=56\), so (d=7) and (a_7=16+4(7)=44). Find the common difference first.

Step 2

Why this answer is correct

The correct answer is C. (44). \(a_{11}-a_3=8d=56\), so (d=7) and (a_7=16+4(7)=44). Find the common difference first.

Step 3

Exam Tip

\(a_{11}-a_3=8d=56\), इसलिए (d=7) और (a_7=16+4(7)=44)। पहले समान अंतर निकालें।

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समांतर श्रेणी में \(a_3=16\) और \(a_{11}=72\) है। \(a_7\) का मान क्या होगा? / In an arithmetic progression, \(a_3=16\) and \(a_{11}=72\). What is the value of \(a_7\)?

Correct Answer: C. (44). Explanation: \(a_{11}-a_3=8d=56\), इसलिए (d=7) और (a_7=16+4(7)=44)। पहले समान अंतर निकालें। / \(a_{11}-a_3=8d=56\), so (d=7) and (a_7=16+4(7)=44). Find the common difference first.

Which concept should I revise for this Mathematics MCQ?

\(a_{11}-a_3=8d=56\), so (d=7) and (a_7=16+4(7)=44). Find the common difference first.

What exam hint can help solve this Mathematics question?

\(a_{11}-a_3=8d=56\), इसलिए (d=7) और (a_7=16+4(7)=44)। पहले समान अंतर निकालें।