The speed ratio of a and B is 5:4 when they meet in two hours. The distance between AB and a is 270km. How many kilometers do a and B travel each hour?

This problem can be solved by a series of equations
Set a car to travel 5 x km per hour, B car to travel 4 x km per hour
From the meaning of the title, (5x + 4x) * 2 = 270
Solving the equation, we get x = 15
∴5x=75,4x=60,
A: car a runs 75 kilometers per hour, car B runs 60 kilometers per hour

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