Question
A person travels 240 km partly by car and partly by
train. He spends 2 hours more traveling by train than by car. The speed of the car is 60 km/h, and the speed of the train is 40 km/h. Find the distance traveled by car.Solution
Let the time spent traveling by car be x hours. Then, the time spent traveling by train = x + 2 hours. Distance by car = 60x, and distance by train = 40(x + 2). Total distance = 60x + 40(x + 2) = 240 60x + 40x + 80 = 240 100x = 160 x = 1.6 hours Distance by car = 60 × 1.6 = 96 km Correct answer: b) 96 km
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