Q1. A motor boat covers a certain distance downstream in a river in 3 hours It covers the same distance upstream in 3 hours and half If the speed of the water is 1 5 km h then the speed of the boat in still water is

Q2. There is road besides a river Two friends started from a place P moved to a shopping mall situated at another place Q and then returned to P again One of them moves on a cycle at a speed of 12 km hr while the other sails on a boat at a speed of 10 km hr If the river flows at the speed of 4 km hr which of the two friends will return to place P

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. Time taken to cover the upstream distance on Friday is same as time taken to cover the downstream distance on Thursday Total speed of still water on Thursday and Friday is 10 km hr Find the ratio of speed of still water on Thursday and Friday

Q5. A man can row 30 km upstream and 44 km downstream in 10 hrs Also he can row 40 km upstream and 55 km downstream in 13 hrs Find the speed of the man in still water