यदि (\frac{(n+1)!+n!}{(n-1)!}=120) है तो (n) का मान क्या है?

If (\frac{(n+1)!+n!}{(n-1)!}=120) then what is the value of (n)?

Explanation opens after your attempt
Correct Answer

C. (10)

Step 1

Concept

This gives (n(n+2)=120). From \(10\times12=120\), (n=10).

Step 2

Why this answer is correct

The correct answer is C. (10). This gives (n(n+2)=120). From \(10\times12=120\), (n=10).

Step 3

Exam Tip

यह (n(n+2)=120) देता है। \(10\times12=120\) से (n=10) मिलता है।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि (\frac{(n+1)!+n!}{(n-1)!}=120) है तो (n) का मान क्या है? / If (\frac{(n+1)!+n!}{(n-1)!}=120) then what is the value of (n)?

Correct Answer: C. (10). Explanation: यह (n(n+2)=120) देता है। \(10\times12=120\) से (n=10) मिलता है। / This gives (n(n+2)=120). From \(10\times12=120\), (n=10).

Which concept should I revise for this Mathematics MCQ?

This gives (n(n+2)=120). From \(10\times12=120\), (n=10).

What exam hint can help solve this Mathematics question?

यह (n(n+2)=120) देता है। \(10\times12=120\) से (n=10) मिलता है।