Subject Category > Economics

Q. A boy goes from home to school at the rate of 3 km./hr. and come back from school to home at the speed of 2 km./hr. If he takes five hours in coming and going, then what is the distance between home and school?

A) 9 km

B) 6 km

C) 5 km

D) 8 km

6 km

Additional Information > Exam point of View

Let the distance between home and school be x km. The time taken to go is x/3, and the time to return is x/2. Total time is x/3 + x/2 = 5. Solving this, x = 6 km. Hence, the distance is 6 km.

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