A boat goes 50 km downstream and comes back to the starting point in 7.5 hours. If the speed of the current is 5 km per hour, then the speed of the boat in still water is అన్నాడు.
A boat goes 50 km downstream and comes back to the starting point in 7.5 hours. If the speed of the current is 5 km per hour, then the speed of the boat in still water is annadu.