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# There are 5 cars to be displayed in 5 parking spaces with

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Manager
Joined: 06 Nov 2008
Posts: 53
There are 5 cars to be displayed in 5 parking spaces with [#permalink]

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06 Nov 2008, 10:43
There are 5 cars to be displayed in 5 parking spaces with all the cars facing the same direction. Of the 5 cars, 3 are red, 1 is blue, and 1 is yellow. If the cars are identical except for color, how many different display arrangements of the 5 cars are possible?

A. 20
B. 25
C. 40
D. 60
E. 125

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VP
Joined: 17 Jun 2008
Posts: 1477

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07 Nov 2008, 05:34
Three red cars can be arranged in 5 slots in 5C3 ways. Moreover, two remainign cars can be arranged in 2 different ways.

Hence, total number of ways = 5C3*2 = 20.

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Re: cars--30   [#permalink] 07 Nov 2008, 05:34
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# There are 5 cars to be displayed in 5 parking spaces with

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