SOLUTION: A car is traveling 90 mph slower than a plane. If it takes the car 6 hours longer to cover the same distance than the plane in 3 hours, how fast is the plane going?
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Question 365863: A car is traveling 90 mph slower than a plane. If it takes the car 6 hours longer to cover the same distance than the plane in 3 hours, how fast is the plane going? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A car is traveling 90 mph slower than a plane. If it takes the car 6 hours longer to cover the same distance than the plane in 3 hours, how fast is the plane going?
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The car takes 9 hours for the plane's 3 hours, so the plane is 3 times as fast.
c = car's speed
3c = c+90
c = 45
plane's speed = 135 mph
