(7) अध्यायों में से पुनरावृत्ति के लिए ठीक (4) अध्याय चुनने के कितने तरीके हैं?

How many ways are there to choose exactly (4) chapters from (7) chapters for revision?

Explanation opens after your attempt
Correct Answer

B. (35)

Step 1

Concept

The order of chapters is not asked. Therefore \(\binom{7}{4}=35\).

Step 2

Why this answer is correct

The correct answer is B. (35). The order of chapters is not asked. Therefore \(\binom{7}{4}=35\).

Step 3

Exam Tip

अध्यायों का क्रम नहीं पूछा गया है। इसलिए \(\binom{7}{4}=35\) होगा।

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Mathematics Answer, Explanation and Revision Hints

(7) अध्यायों में से पुनरावृत्ति के लिए ठीक (4) अध्याय चुनने के कितने तरीके हैं? / How many ways are there to choose exactly (4) chapters from (7) chapters for revision?

Correct Answer: B. (35). Explanation: अध्यायों का क्रम नहीं पूछा गया है। इसलिए \(\binom{7}{4}=35\) होगा। / The order of chapters is not asked. Therefore \(\binom{7}{4}=35\).

Which concept should I revise for this Mathematics MCQ?

The order of chapters is not asked. Therefore \(\binom{7}{4}=35\).

What exam hint can help solve this Mathematics question?

अध्यायों का क्रम नहीं पूछा गया है। इसलिए \(\binom{7}{4}=35\) होगा।