Arithmetic Questions And Answers :: Boats Streams: part1

6.Speed of a boat in standing water is 6 km/hr and the speed of the stream is 1.5 km/hr A man rows to a place at a distance of 22.5 km and comes back to the starting point. The total time taken by him :

7.A man rows upstream 16 km and downstream 28 km, taking 5 hours each time. The velocity of the current is :

8.The speed upstream be 1 km/hr, then speed of the stream is :

9.A man can row three quarters of a kilometer against the stream in 11 minutes and return in 7 minutes. The speed of the main still water is :

10.A boat covers 24 km upstream and 36 km downstream in 6 hours while it covers 36 km upstream and 24 km downstream in 6 hours. The velocity of the current is :