out of 7 gents and 4 ladies a committee of 5 is to be formed. the number of committees such that each committee includes at least one lady
Answers
Answered by
3
Explanation:
L=1 G=4
L=2 G=3
L=3 G=2
L=4 G=1
Answered by
9
Answer:
441
Explanation:
it has four cases
case 1
4 gents and 1 lady
7C4x4C1
= 35×4
=140
case 2
3 gents and 2 ladies
7C3×4C2
= 35*6
=210
case 3
2 gents and 3 ladies
7C2×4C3
=21×4
=84
case 4
1 gent and 4 ladies
7C1*4C4
=7*1
=7
Ans
number of committees=140 + 210 + 84 + 7 =441
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