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GMATPrep 34: Got this problem right and I did it the same [#permalink]
24 Oct 2007, 21:40
Got this problem right and I did it the same way, I just thought id post it anyway.
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?
Heres what I said, 3 cars: ABC.
Prob of entering A is 1, it is certain the rider will enter A.
So we get ABC: 1*1/3*1/3 (1/3 chance this person will ride in any of the three cars)