यदि ( \frac{(n+2)!}{n!}=132 ), तो (n) का मान क्या है?
If ( \frac{(n+2)!}{n!}=132 ), what is the value of (n)?
Explanation opens after your attempt
C. (10)
Concept
It gives ((n+2)(n+1)=132), and \(12\cdot11=132\), so (n=10). Recognize consecutive factors.
Why this answer is correct
The correct answer is C. (10). It gives ((n+2)(n+1)=132), and \(12\cdot11=132\), so (n=10). Recognize consecutive factors.
Exam Tip
यह ((n+2)(n+1)=132) देता है और \(12\cdot11=132\), इसलिए (n=10) है। लगातार गुणकों को पहचानें।
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