यदि किसी समानांतर श्रेढ़ी में \(a_4=22\) और (d=6) है, तो \(a_9\) क्या होगा?
If an arithmetic progression has \(a_4=22\) and (d=6), what will be \(a_9\)?
Explanation opens after your attempt
D. (52)
Concept
From \(a_4\) to \(a_9\), there are (5) gaps, so (a_9=22+5(6)=52). Moving forward from a nearby term is a quick method.
Why this answer is correct
The correct answer is D. (52). From \(a_4\) to \(a_9\), there are (5) gaps, so (a_9=22+5(6)=52). Moving forward from a nearby term is a quick method.
Exam Tip
\(a_4\) से \(a_9\) तक (5) अंतर हैं, इसलिए (a_9=22+5(6)=52)। पास के पद से आगे बढ़ना तेज तरीका है।
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