Boats and Streams test 4

A boat can row 4 km in 24 mins along the current and the speed      of the current is 3 kmph. What is the speed of the boat up the current?





A boat goes 36 km with the stream in 6 hours and 40 km against      the stream in 8 hours what is the sped of the boat in still water in kmph?





A boat can row 48 km down the stream in 8 hours. If the speed      of the flow is 2 kmph, find the time required for the boat to travel the      same distance against the flow?





A boat can row a certain distance down the stream in 6 hours      and returns the same distance in 9 hours. If the speed of the stream is 2      kmph, find the speed of the boat in still water in kmph?





A boat can row between two places A and B up stream in 5 hrs      and sown stream 3 hrs. If the speed of the boat on still water is 8 kmph      find the speed of the current in kmph?







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