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22 January, 13:06

A class has 10 boys and 12 girls. in how many ways can a committee of four be selected if the committee can have at most two girls?

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  1. 22 January, 13:31
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    C (12,0) C (10,4) + C (12,1) C (10,3) + C (12,2) C (10,2) = (1) (210) + (12) (120) + (66) (45) = 210+1440+2904 = 4554 Answeer: 4554 ways
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