SOLUTION: a truck enters a highway driving 60mph. a car enters at the same place 13 minuites later and drives 69mph in the same direction. how long does it take for the car to pass the truck

Question 409499: a truck enters a highway driving 60mph. a car enters at the same place 13 minuites later and drives 69mph in the same direction. how long does it take for the car to pass the truck?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a truck enters a highway driving 60mph. a car enters at the same place 13 minuites later and drives 69mph in the same direction. how long does it take for the car to pass the truck?
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The truck goes 13 miles in 13 minutes (60 * 13/60)
The car gains on the truck at 9 mph (69 - 60)
13 miles/9 mph = 13/9 hours

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