A boy cycles to the park at 8 km/h and comes back at 4 km/h. If the total time taken is 1.5 hours, find the distance between his home and the park.
Show answer & explanation
Correct answer: D
Explanation
Given:
Going speed = 8 km/h
Coming speed = 4 km/h
Total time = 1.5 hours
Let's say distance = x km
Going time = x / 8
Coming time = x / 4
Total time
x/8 + x/4 = 1.5
x/8 + 2x/8 = 1.5
3x/8 = 1.5
x = 4 km