Question

19. A boy goes to his school from his house at a speed of 3 km/hr and returns at a speed of 2 kruh he takes 5 hours in going and coming, find the distance between his house and school.​

Answer 1

Answer:

Total distance = 25 km

Step-by-step explanation:

Total Speed = Total distance/Total time

Total distance = Total speed * Total time

                        = (3 + 2)km/hr  * 5 hr

                        = 5 km/hr  * 5 hr

Total distance = 25 km

Answer 2

6km is the distance between his house and school.

Step-by-step explanation:

Let the required distance be x km.

Then,

$\frac{x}{3} + \frac{x}{2} = 5 \\ \\ = > \frac{2x + 3x}{6} = 5 \\ \\ = > 5x = 5 \times 6 \\ \\ = > 5x = 30 \\ \\ = > x = \frac{30}{5} \\ \\ = > x = 6$