यदि ( \frac{(n+4)!}{(n+1)!}=990 ), तो (n) का मान क्या है?

If ( \frac{(n+4)!}{(n+1)!}=990 ), what is the value of (n)?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

((n+4)(n+3)(n+2)=990), and \(11\cdot10\cdot9=990\), so (n=7). Match the three consecutive factors carefully.

Step 2

Why this answer is correct

The correct answer is C. (8). ((n+4)(n+3)(n+2)=990), and \(11\cdot10\cdot9=990\), so (n=7). Match the three consecutive factors carefully.

Step 3

Exam Tip

((n+4)(n+3)(n+2)=990) और \(12\cdot11\cdot10=1320\) नहीं; \(11\cdot10\cdot9=990\), इसलिए (n=7) है।

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Mathematics Answer, Explanation and Revision Hints

यदि ( \frac{(n+4)!}{(n+1)!}=990 ), तो (n) का मान क्या है? / If ( \frac{(n+4)!}{(n+1)!}=990 ), what is the value of (n)?

Correct Answer: C. (8). Explanation: ((n+4)(n+3)(n+2)=990) और \(12\cdot11\cdot10=1320\) नहीं; \(11\cdot10\cdot9=990\), इसलिए (n=7) है। / ((n+4)(n+3)(n+2)=990), and \(11\cdot10\cdot9=990\), so (n=7). Match the three consecutive factors carefully.

Which concept should I revise for this Mathematics MCQ?

((n+4)(n+3)(n+2)=990), and \(11\cdot10\cdot9=990\), so (n=7). Match the three consecutive factors carefully.

What exam hint can help solve this Mathematics question?

((n+4)(n+3)(n+2)=990) और \(12\cdot11\cdot10=1320\) नहीं; \(11\cdot10\cdot9=990\), इसलिए (n=7) है।