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Committee X and Committee Y

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by gmatpup » Fri Nov 11, 2011 9:21 am
Committee X has 4 members and Committee Y has 5 members, and these committees have no members in common. If a task force is to be formed consisting of one member of x and one member of y, how many different task forces are possible?

A. 6

B. 9

C. 10

D. 20

E. 36

Answer is D

Thanks:)
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by Anurag@Gurome » Fri Nov 11, 2011 9:34 am
gmatpup wrote:Committee X has 4 members and Committee Y has 5 members, and these committees have no members in common. If a task force is to be formed consisting of one member of x and one member of y, how many different task forces are possible?
Total number of different task force = (Number of ways to select one member from 4)*(Number of ways to select one member from 5) = 4*5 = 20

The correct answer is D.
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by rijul007 » Fri Nov 11, 2011 9:40 am
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4 5

Total no of ways of making a task force = 4*5 = 20

Option D
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