A committee of 7 has to be formed from 8 men and 4 women for swachhtta Abhiyan. what is the probability that the committee consists of a) exactly 3 women b) at least 3 women
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C(n,r)=n!r!(n−r)!
A committee consisting of 3 girls and 4 boys can be formed in 1C3×9C4 ways
⇒4C1×9C4
⇒41×9×8×7×61.2.3.4
⇒504 ways
Hence (C) is the correct answer.
KristalSingh:
your answer is incorrect
where you can see c) option
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