Respuesta :

sharmajohn052

Answer:

1.2km

Explanation:

Length of a swimming pool =50 m

A boy crosses it and then come back

Total distance covered =50×2=100 m

Time taken =5 minutes

∴Speed in km/h=

T

D

=

1000×5

100×60

=1

5

1

km/h=1.2 km/h