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Question

A committee of 3 members is to be formed out of 3 men and 4 women. In how many different ways can it be done so that atleast one member is woman?

A
34
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B
12
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C
30
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D
36
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E
None of these
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Solution

The correct option is A 34

The committee can be formed in the following ways
(i) By selecting 2 men and 1 woman
(ii) By selecting 1 man and 2 women
(iii) By selecting 3 women
Total number of ways of forming the committee
= 3C2× 4C1+ 3C1× 4C2+ 4C3=3×4+3×6+4
= 12 + 18 + 4= 34


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