How many groups of 6 persons can be formed from 8 men and 7 women ?
A . 5000
B . 5005
C . 5050
D . None of these
Answer : B . 5005
Explanation:
Total number of person = 8 men + 7 women = 15
No. of groups can be formed of 6 persons = 15C6
= 15! /{6! (15 – 6)!}
= 15! /(6! 9!)
= (15 x 14 x 13 x 12 x 11 x 10)/(6 x 5 x 4 x 3 x 2 x 1)
= 5005
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