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Question

Mathematics Question on Permutations

In how many ways can a committee of 55 made out 66 men and 44 women containing atleast one woman?

A

246

B

222

C

186

D

None of these

Answer

246

Explanation

Solution

A committee of 55 out of 6+4=106 + 4= 10 can be
made in 10C5=252^{10}C_5 = 252 ways.
If no woman is to be included,
then number of ways =5C5= \,^5C_5 = 6
\therefore the required number =2526=246= 252 -6 = 246