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There are 15 boys snd 10 girls in your class. a four member committee is to be formed from the students of your class.in how many ways this can be done if

the committee consists at least three girls?
Anyone answer me...!!
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Committee with at least three girl =( committee with 3 girl + committee with 4 girl )
committee with 3 girl =(15C1)×(10C3) = 15×120 = 1800
committee with 4 girl = (10C4) = 210
so the required number of ways = 1800 +210 = 2010
3 3 3
hope you understand the concept of combination
Thanks al
most welcome :)
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