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by prachich1987 » Sat Jan 29, 2011 1:40 am
In a flower shop, there are 5 different types of flowers. Two of the flowers are blue, two are red and one is yellow. In how many different combinations of different colors can a 3-flower garland be made?

a) 4.
b) 20.
c) 3.
d) 5.
e) 6.

Source : some online material
OA : after some discussion
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by Anurag@Gurome » Sat Jan 29, 2011 2:04 am
prachich1987 wrote:In a flower shop, there are 5 different types of flowers. Two of the flowers are blue, two are red and one is yellow. In how many different combinations of different colors can a 3-flower garland be made?

a) 4.
b) 20.
c) 3.
d) 5.
e) 6.
Number of different combinations of different 3 colors = (Number of ways to select a red one)*(Number of ways to select a blue one)*(Number of ways to select a yellow one) = (2)*(2)*(1) = 4

The correct answer is A.
Anurag Mairal, Ph.D., MBA
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