यदि समांतर श्रेणी में \(a_3+a_7=60\) है, तो \(a_5\) क्या होगा?
If in an arithmetic progression \(a_3+a_7=60\), what is \(a_5\)?
Explanation opens after your attempt
C. (30)
Concept
\(a_5\) is equidistant from \(a_3\) and \(a_7\), so \(a_5=\frac{60}{2}=30\). The average of symmetric terms is the middle term.
Why this answer is correct
The correct answer is C. (30). \(a_5\) is equidistant from \(a_3\) and \(a_7\), so \(a_5=\frac{60}{2}=30\). The average of symmetric terms is the middle term.
Exam Tip
\(a_5\), \(a_3\) और \(a_7\) से समान दूरी पर है, इसलिए \(a_5=\frac{60}{2}=30\)। सममित पदों का औसत मध्य पद होता है।
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