SOLUTION: Two race cars are speeding around the racetrack at different speeds. One goes around the track in 2 minutes; the other goes around the track in 1½ minutes. How often does the faste

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Question 308535: Two race cars are speeding around the racetrack at different speeds. One goes around the track in 2 minutes; the other goes around the track in 1½ minutes. How often does the faster car pass the slower car?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
one car takes 2 minutes for one round
So it does 1/2 round in 1 minute
.
second car takes 1 1/2 mins for 1 round .. (3/2 minutes)
it does 2/3 round in 1 minute
every minute the second car gains 2/3 -1/2 of the round
=4-3 / 6
=1/6 of the track.
6 minutes iit takes to gain one round of track.
Every 6 minutes the faster car overtakes the slower car.