d = rt so t = d/r, and the times are the same.
110/t = 528/(5t - 10)
Cross multiply.
110(5t - 10) = 528t
550t - 1100 = 528t
22t = 1100
t = 50
5(50) - 10 = 240
The train averaged 50 km/h and the plane 240.
Bob B.
asked • 02/01/18A train travels
A train travels 110km in the same time that a plane covers 528 km. If the speed of the plane is 10 km per hr less than 5 times the speed of the train, find both speeds.
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