(18) विद्यार्थियों में से (7) विद्यार्थियों की टीम बनानी है जिसमें (4) विशेष विद्यार्थी शामिल न हों। कितने तरीके हैं?

A team of (7) students is to be formed from (18) students excluding (4) special students. How many ways are there?

Explanation opens after your attempt
Correct Answer

B. (3432)

Step 1

Concept

After excluding (4) special students (14) students remain. So the number of ways is \(\binom{14}{7}=3432\).

Step 2

Why this answer is correct

The correct answer is B. (3432). After excluding (4) special students (14) students remain. So the number of ways is \(\binom{14}{7}=3432\).

Step 3

Exam Tip

(4) विशेष विद्यार्थियों को हटाने पर (14) विद्यार्थी बचते हैं। इसलिए \(\binom{14}{7}=3432\) तरीके होंगे।

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Mathematics Answer, Explanation and Revision Hints

(18) विद्यार्थियों में से (7) विद्यार्थियों की टीम बनानी है जिसमें (4) विशेष विद्यार्थी शामिल न हों। कितने तरीके हैं? / A team of (7) students is to be formed from (18) students excluding (4) special students. How many ways are there?

Correct Answer: B. (3432). Explanation: (4) विशेष विद्यार्थियों को हटाने पर (14) विद्यार्थी बचते हैं। इसलिए \(\binom{14}{7}=3432\) तरीके होंगे। / After excluding (4) special students (14) students remain. So the number of ways is \(\binom{14}{7}=3432\).

Which concept should I revise for this Mathematics MCQ?

After excluding (4) special students (14) students remain. So the number of ways is \(\binom{14}{7}=3432\).

What exam hint can help solve this Mathematics question?

(4) विशेष विद्यार्थियों को हटाने पर (14) विद्यार्थी बचते हैं। इसलिए \(\binom{14}{7}=3432\) तरीके होंगे।