A boy goes to his school from his house at a speed of 3 km / hr and returns at a speed of 2 km / hr. If he takes 5 hours in going and coming, the distance between his house and school is :___________?
Q1. A boy goes to his school from his house at a speed of 3 km / hr and returns at a speed of 2 km / hr. If he takes 5 hours in going and coming, the distance between his house and school is :___________?
Answer: 6 km
Explanation: Time to school + return: d/3 + d/2 = 5. Solving: 5d/6 = 5, so d = 6 km.