(9) फलों में से (4) फल चुनने हैं लेकिन (3) विशेष फलों में से ठीक (1) चुना जाए। कितने तरीके हैं?
From (9) fruits (4) fruits are to be selected but exactly (1) of (3) special fruits is chosen. How many ways are there?
Explanation opens after your attempt
Correct Answer
B. (60)
Concept
Choose (1) from the special fruits and (3) from the remaining (6). The ways are \(\binom{3}{1}\binom{6}{3}=60\).
Why this answer is correct
The correct answer is B. (60). Choose (1) from the special fruits and (3) from the remaining (6). The ways are \(\binom{3}{1}\binom{6}{3}=60\).
Exam Tip
विशेष फलों में से (1) और बाकी (6) में से (3) चुनेंगे। तरीके \(\binom{3}{1}\binom{6}{3}=60\) हैं।
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