# Speed of a boat in still water is 9 km/hr. It goes 12 km down stream and comes back to the starting point in three hours.What is the speed of water in the stream?

1
by TubaBrar

Log in to add a comment

by TubaBrar

Log in to add a comment

speed of a boat in still water= 9km/hr

we know

x+9=12

x=12-9

x=3

the speed of the still water=3km/hr.