यदि (\frac{(n+2)!}{n!}=56) हो, तो (n) का मान क्या है?

If (\frac{(n+2)!}{n!}=56), what is the value of (n)?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

((n+2)(n+1)=56), so \(8\cdot7=56\) gives (n=6). Compare with consecutive numbers.

Step 2

Why this answer is correct

The correct answer is B. (6). ((n+2)(n+1)=56), so \(8\cdot7=56\) gives (n=6). Compare with consecutive numbers.

Step 3

Exam Tip

((n+2)(n+1)=56), इसलिए \(8\cdot7=56\) से (n=6)। लगातार संख्याओं से तुलना करें।

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Mathematics Answer, Explanation and Revision Hints

यदि (\frac{(n+2)!}{n!}=56) हो, तो (n) का मान क्या है? / If (\frac{(n+2)!}{n!}=56), what is the value of (n)?

Correct Answer: B. (6). Explanation: ((n+2)(n+1)=56), इसलिए \(8\cdot7=56\) से (n=6)। लगातार संख्याओं से तुलना करें। / ((n+2)(n+1)=56), so \(8\cdot7=56\) gives (n=6). Compare with consecutive numbers.

Which concept should I revise for this Mathematics MCQ?

((n+2)(n+1)=56), so \(8\cdot7=56\) gives (n=6). Compare with consecutive numbers.

What exam hint can help solve this Mathematics question?

((n+2)(n+1)=56), इसलिए \(8\cdot7=56\) से (n=6)। लगातार संख्याओं से तुलना करें।