यदि ( \frac{(n+3)!}{(n+1)!}=72 ), तो (n) का मान क्या होगा?
If ( \frac{(n+3)!}{(n+1)!}=72 ), what will be the value of (n)?
Explanation opens after your attempt
B. (6)
Concept
It is ((n+3)(n+2)=72), so \(9\cdot8=72\) gives (n=6). Match consecutive factors.
Why this answer is correct
The correct answer is B. (6). It is ((n+3)(n+2)=72), so \(9\cdot8=72\) gives (n=6). Match consecutive factors.
Exam Tip
यह ((n+3)(n+2)=72) है, इसलिए \(9\cdot8=72\) से (n=6) है। लगातार गुणकों को मिलाकर देखें।
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