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# A certain roller coaster has 3 cars, and a passenger is

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Manager
Joined: 10 Oct 2008
Posts: 56
Followers: 1

Kudos [?]: 47 [0], given: 0

A certain roller coaster has 3 cars, and a passenger is [#permalink]

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17 Oct 2008, 07:00
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

A certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller coaster 3 times, what is the probability that the passenger will ride in each of the 3 cars?

A. 0
B. 1/9
C. 2/9
D. 1/3
E. 1
Intern
Joined: 21 Aug 2008
Posts: 24
Followers: 0

Kudos [?]: 19 [1] , given: 0

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17 Oct 2008, 07:12
1
KUDOS
Has 3/3 chances to ride in a new car the 1st time
Has 2/3 chances to ride in a new car the 2nd time
Has 1/3 chances to ride in a new car the last time

3/3 * 2/3 * 1/3 = 6/27 = 2/9

C
Re: cars   [#permalink] 17 Oct 2008, 07:12
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