यदि (\frac{(m+2)!}{m!}=90) हो, तो (m) का मान क्या है?

If (\frac{(m+2)!}{m!}=90), what is the value of (m)?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

(\frac{(m+2)!}{m!}=(m+2)(m+1)), so \(10\cdot9=90\) gives (m=8). Identify the product of consecutive numbers.

Step 2

Why this answer is correct

The correct answer is C. (8). (\frac{(m+2)!}{m!}=(m+2)(m+1)), so \(10\cdot9=90\) gives (m=8). Identify the product of consecutive numbers.

Step 3

Exam Tip

(\frac{(m+2)!}{m!}=(m+2)(m+1)), इसलिए \(10\cdot9=90\) से (m=8)। लगातार संख्याओं का गुणनफल पहचानें।

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Mathematics Answer, Explanation and Revision Hints

यदि (\frac{(m+2)!}{m!}=90) हो, तो (m) का मान क्या है? / If (\frac{(m+2)!}{m!}=90), what is the value of (m)?

Correct Answer: C. (8). Explanation: (\frac{(m+2)!}{m!}=(m+2)(m+1)), इसलिए \(10\cdot9=90\) से (m=8)। लगातार संख्याओं का गुणनफल पहचानें। / (\frac{(m+2)!}{m!}=(m+2)(m+1)), so \(10\cdot9=90\) gives (m=8). Identify the product of consecutive numbers.

Which concept should I revise for this Mathematics MCQ?

(\frac{(m+2)!}{m!}=(m+2)(m+1)), so \(10\cdot9=90\) gives (m=8). Identify the product of consecutive numbers.

What exam hint can help solve this Mathematics question?

(\frac{(m+2)!}{m!}=(m+2)(m+1)), इसलिए \(10\cdot9=90\) से (m=8)। लगातार संख्याओं का गुणनफल पहचानें।