यदि \(a_4+a_{16}=140\) है, तो \(a_{10}\) का मान क्या है?
If \(a_4+a_{16}=140\), what is the value of \(a_{10}\)?
Explanation opens after your attempt
Correct Answer
C. (70)
Concept
\(a_{10}\) is equidistant from \(a_4\) and \(a_{16}\), so \(a_{10}=\frac{140}{2}=70\). The average of symmetric terms is the middle term.
Why this answer is correct
The correct answer is C. (70). \(a_{10}\) is equidistant from \(a_4\) and \(a_{16}\), so \(a_{10}=\frac{140}{2}=70\). The average of symmetric terms is the middle term.
Exam Tip
\(a_{10}\), \(a_4\) और \(a_{16}\) से समान दूरी पर है, इसलिए \(a_{10}=\frac{140}{2}=70\)। सममित पदों का औसत बीच का पद होता है।
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