यदि \(a_2=8\) और \(a_5=20\) है, तो \(a_9\) क्या होगा?
If \(a_2=8\) and \(a_5=20\), what is \(a_9\)?
Explanation opens after your attempt
C. (36)
Concept
The increase over three gaps is (12), so (d=4) and (a_9=20+4(4)=36). Moving forward from a nearby term is easy.
Why this answer is correct
The correct answer is C. (36). The increase over three gaps is (12), so (d=4) and (a_9=20+4(4)=36). Moving forward from a nearby term is easy.
Exam Tip
तीन अंतरों में वृद्धि (12) है, इसलिए (d=4) और (a_9=20+4(4)=36)। पास के पद से आगे बढ़ना आसान है।
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