(10) प्रश्नों में से (7) प्रश्न चुनने के कितने तरीके हैं?

How many ways are there to select (7) questions from (10) questions?

Explanation opens after your attempt
Correct Answer

A. (120)

Step 1

Concept

\(\binom{10}{7}=\binom{10}{3}=120\). Complementary selection makes calculation faster.

Step 2

Why this answer is correct

The correct answer is A. (120). \(\binom{10}{7}=\binom{10}{3}=120\). Complementary selection makes calculation faster.

Step 3

Exam Tip

\(\binom{10}{7}=\binom{10}{3}=120\) है। पूरक चयन से गणना जल्दी होती है।

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Mathematics Answer, Explanation and Revision Hints

(10) प्रश्नों में से (7) प्रश्न चुनने के कितने तरीके हैं? / How many ways are there to select (7) questions from (10) questions?

Correct Answer: A. (120). Explanation: \(\binom{10}{7}=\binom{10}{3}=120\) है। पूरक चयन से गणना जल्दी होती है। / \(\binom{10}{7}=\binom{10}{3}=120\). Complementary selection makes calculation faster.

Which concept should I revise for this Mathematics MCQ?

\(\binom{10}{7}=\binom{10}{3}=120\). Complementary selection makes calculation faster.

What exam hint can help solve this Mathematics question?

\(\binom{10}{7}=\binom{10}{3}=120\) है। पूरक चयन से गणना जल्दी होती है।