Mathematics Answer, Explanation and Revision Hints
यदि (\frac{(n+2)!}{n!}=56) है तो (n) का धनात्मक मान क्या है? / If (\frac{(n+2)!}{n!}=56) then what is the positive value of (n)?
Correct Answer: B. (6). Explanation: सरलीकरण से ((n+2)(n+1)=56) मिलता है। अतः (n=6) सही है। / Simplification gives ((n+2)(n+1)=56). Hence (n=6) is correct.
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