On the expressway, a 5m long car with a speed of 110km / h is going to overtake a 15m long car with a speed of 100km / h. (equation) Can a car overtake a cart? If so, how long will it take?

Suppose that it takes x hours to overtake the cart
110x-100x=15+5
The solution is: x = 2
A: a car can overtake a cart in two hours

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