Question

A motor boat whose speed is 10 km hr in still water goes 48 km upstream and comes back to the starting point in 5 hours fond the speed of the stream

Answer 1

hey chum here is your answer
v= 10
v-u= 48/5
so put the value of v
10-u=48/5
10-48/5=u
2/5 = u
speed of stream, u= 0.4 km/hr