SOLUTION: A truck enters a highway driving 60 mph. A car enters the highway at the same place 6 minutes later and drives 71 mph in the same direction. From the time the car enters the high

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Question 412910: A truck enters a highway driving 60 mph. A car enters the highway at the same place 6 minutes later and drives 71 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
truck ---60 mph
car ------71 mph
in 6 minutes truck travels 60*6/60 = 6 miles
...
catch speed = 71-60 = 11 mph
..
catch up distance = 6 miles
..
time = 6/11 hours ===> 6/11 * 60
= 32.7 minutes