Question

place a and b are 100 km apart on a highway .one day start from a and another from b at the same time .if the cars travel in the same directions at different speed they meet in 5 hours. if they travel towards each other they meet in one hours. what are the speed of two cars?

Answer 1

speed of a =10.5 km/h
speed of b=9.5km/h

Answer 2

Answer:

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Let the speed of car at A be x km/h

and the speed of car at B be y km/h

As per the question,

5x - 5y = 100

x - y = 20 ... (1)

and x + y = 100 ... (2)

Solving (1) and (2), we get,

x = 60 and y = 40

Speed of the car at A = 60 km/h

Speed of the car at B = 40 km/h