यदि \(a_{18}=5a_6-8\) और \(a_6=31\) है, तो \(a_{30}\) क्या होगा?
If \(a_{18}=5a_6-8\) and \(a_6=31\), what is \(a_{30}\)?
Explanation opens after your attempt
Correct Answer
A. (263)
Concept
\(a_{18}=147\) and (12d=116), so \(d=\frac{29}{3}\). \(a_{30}=147+12\cdot\frac{29}{3}=263\).
Why this answer is correct
The correct answer is A. (263). \(a_{18}=147\) and (12d=116), so \(d=\frac{29}{3}\). \(a_{30}=147+12\cdot\frac{29}{3}=263\).
Exam Tip
\(a_{18}=147\) और (12d=116), इसलिए \(d=\frac{29}{3}\)। \(a_{30}=147+12\cdot\frac{29}{3}=263\)।
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