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On his drive to work, John listens to one of 3 radio [#permalink]
05 Nov 2005, 23:40
On his drive to work, John listens to one of 3 radio stations A, B, or C. He turns to A first, If A is playing the song he likes he listens to it or changes to B, If he likes the song B is playing, he listens to it or changes to C, If he likes the song C is playing then he listens to it or he shuts the Radio off. For each station, the probability is 0.3 that at any given moment the station is playing a song that John likes. What is the probability that John will hear a song that he likes.
Can somebody please explain this problem Thanks. I have my GMAT in a couple of days.