यदि (\frac{n!}{(n-5)!}=55440) है तो (n) का मान क्या है?

If (\frac{n!}{(n-5)!}=55440) then what is the value of (n)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (11)

Explanation

Simple Explanation

यह (n(n-1)(n-2)(n-3)(n-4)=55440) है। \(11\times10\times9\times8\times7=55440\) इसलिए (n=11) है। / This is (n(n-1)(n-2)(n-3)(n-4)=55440). Since \(11\times10\times9\times8\times7=55440\), (n=11).

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि (\frac{n!}{(n-5)!}=55440) है तो (n) का मान क्या है? / If (\frac{n!}{(n-5)!}=55440) then what is the value of (n)?

Correct Answer: B. (11). Explanation: यह (n(n-1)(n-2)(n-3)(n-4)=55440) है। \(11\times10\times9\times8\times7=55440\) इसलिए (n=11) है। / This is (n(n-1)(n-2)(n-3)(n-4)=55440). Since \(11\times10\times9\times8\times7=55440\), (n=11).