Question

Boy walks to his school with a constant speed of 8km/h and reaches ther in 40 min. Find the distance of his school from house.

Answer 1

Answer:

5 km

Explanation:

40÷8=5

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Answer 2

Answer:

the boy Home to school to again home

From home to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hour

And in returning from school to home time taken = 20 min = (20/60) hour = 0.33 hour

average speed = Total distance / time taken

= (3 + 3)/(0.5 + 0.33) km/h

= 7.2 km/h