\(\frac{^{n}C_r}{^{n}C_{r-1}}\) का सही मान कौन-सा है?

What is the correct value of \(\frac{^{n}C_r}{^{n}C_{r-1}}\)?

Explanation opens after your attempt
Correct Answer

B. \(\frac{n-r+1}{r}\)

Step 1

Concept

Dividing the factorial forms leaves \(\frac{n-r+1}{r}\). In exams use the ratio formula for adjacent terms.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{n-r+1}{r}\). Dividing the factorial forms leaves \(\frac{n-r+1}{r}\). In exams use the ratio formula for adjacent terms.

Step 3

Exam Tip

Factorial रूपों को भाग देने पर \(\frac{n-r+1}{r}\) बचता है। परीक्षा में adjacent terms के लिए ratio formula उपयोग करें।

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Mathematics Answer, Explanation and Revision Hints

\(\frac{^{n}C_r}{^{n}C_{r-1}}\) का सही मान कौन-सा है? / What is the correct value of \(\frac{^{n}C_r}{^{n}C_{r-1}}\)?

Correct Answer: B. \(\frac{n-r+1}{r}\). Explanation: Factorial रूपों को भाग देने पर \(\frac{n-r+1}{r}\) बचता है। परीक्षा में adjacent terms के लिए ratio formula उपयोग करें। / Dividing the factorial forms leaves \(\frac{n-r+1}{r}\). In exams use the ratio formula for adjacent terms.

Which concept should I revise for this Mathematics MCQ?

Dividing the factorial forms leaves \(\frac{n-r+1}{r}\). In exams use the ratio formula for adjacent terms.

What exam hint can help solve this Mathematics question?

Factorial रूपों को भाग देने पर \(\frac{n-r+1}{r}\) बचता है। परीक्षा में adjacent terms के लिए ratio formula उपयोग करें।