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Old 2009 June 29th, 09:12 AM   #15 (permalink)
lecast
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Join Date: Jun 2009
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Quote:
Originally Posted by abhishek_mumbai View Post
3. There are 12 temp emloyees in a company. 4 of them will be hired at permanent staff. If 5 of 12 of the temp staff are women, how many of the possible groups of 4 temp employees can consist of 3 women and 1 man?

The order does not matter so it is a Permutation question

for women, 3 selected out of 5 => 5P3
for men, 1 selected out of 7 => 7P1

total = 5P3 * 7P1 = 420
If the order does not matter then it is a combination question.
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