यदि ( \frac{(n+5)!+(n+4)!}{(n+3)!}=120 ), तो (n) का मान क्या है?
If ( \frac{(n+5)!+(n+4)!}{(n+3)!}=120 ), what is the value of (n)?
Explanation opens after your attempt
B. (6)
Concept
The simplified form is ((n+4)(n+6)). Putting (n=6) gives \(10\cdot12=120\).
Why this answer is correct
The correct answer is B. (6). The simplified form is ((n+4)(n+6)). Putting (n=6) gives \(10\cdot12=120\).
Exam Tip
सरल रूप ((n+4)(n+6)) है। (n=6) रखने पर \(10\cdot12=120\) मिलता है।
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