Q1. In a stream running at 2 km hr a motorboat goes 10 km upstream and back again to the starting point in 55 minutes Find the speed km hr of the motorboat in still water

Q2. A boat can cover 21 km in the direction of current and 15 km against the current in 3 hours each Find the speed of current

Q3. In a fixed time a boy swims double the distance along the current that he swim against the current If the speed of the speed current is 3 km hr the speed of the boys in still water is

Q4. A Boat takes total 10 hours for traveling downstream from point A to point B and coming back point C which is somewhere between A and B The speed of the Boat in Still water is 9 Km hr and rate of Stream is 3 Km hr then what is the distance between A and B if the ratio of distance between A to C and distance between B to C is 2 1

Q5. A man can row 8 km hr in still water If the river is running at 3 km hr it takes 3 hours more in upstream than to go downstream for the same distance How far is the place