Speed of boat is 20 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 90 km downstream.
The speed of a boat in still water is 30 km/hr. If the boat covers 240 km in upstream in 12 hours, then find the time taken by the boat to travel 120 km...
A man can row a certain distance downstream in 1.5 hours and return in 2.5 hours. If the rate of stream is 3 kmph, then what is the speed of the man in ...
A boat can travel 50 km upstream in 5 hours and 60 km downstream in 4 hours. Find the speed of the boat in still water.
A person rows 300 km against the current in 5 hours and travels 540 km along the current in 6 hours. How much time will he take to row 660 km in still w...
A boat takes 20 hours to go 200 km upstream. If the boat doubles its speed, it can cover 200 km downstream in 4 hours. Find the speed of the stream.
A boat travels 140 km with the flow in 7 hours. For the upstream journey over the same distance, the time taken is 7 hours more. Determine the speed of ...
A man can row 8 km/hr in still water. If the speed of the current is 2 km/hr, it takes 5 hours more in upstream than in the downstream for the same dist...
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 8:5:2, respectively. If ...
A man can row upstream at 18 km/hr and downstream at 24 km/hr. Find the man’s rate in still water and the rate of the current.   Â
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