(12) विद्यार्थियों में से (6) विद्यार्थियों की टीम बनानी है। (5) विशेष विद्यार्थियों में से ठीक (3) शामिल होने चाहिए। कितने तरीके हैं?
A team of (6) students is to be formed from (12) students. Exactly (3) of (5) special students must be included. How many ways are there?
Explanation opens after your attempt
C. (350)
Concept
Choose (3) from (5) special students and (3) from the remaining (7). The ways are \(\binom{5}{3}\binom{7}{3}=350\).
Why this answer is correct
The correct answer is C. (350). Choose (3) from (5) special students and (3) from the remaining (7). The ways are \(\binom{5}{3}\binom{7}{3}=350\).
Exam Tip
(5) विशेष में से (3) और बाकी (7) में से (3) चुनेंगे। तरीके \(\binom{5}{3}\binom{7}{3}=350\) हैं।
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