If the upstream speed and downstream speed of a boat are 15 km/hr and 25 km/hr, what is the speed of stream?
The still water speed of a boat is 30 km/hr. It goes 28 km upstream in 1 hour 45 minutes. What is the downstream speed of the boat?
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A boat can cover 60 km downstream in 2 hours when its engine is working and 10 km in 2 hours with the flow (when the engine is off). What is the upstream speed of the boat?
A sailor goes 24 km downstream in 48 minutes and returns in 1 hour 20 minutes. What is the ratio of the upstream speed to the downstream speed?
If the downstream speed of a boat is 19 km/hr and the speed of the stream is 4 km/hr, what is the upstream speed of the boat?
If the upstream speed of a boat is 17 km/hr and the speed of the stream is 4 km/hr, what is the speed of the boat in still water?
A man rows a boat 48 km downstream in 3 hours and returns the same distance upstream in 6 hours. What is the ratio of the upstream speed to the downstream speed?
Boat A beats Boat B by 100 meters in a 1000 meters downstream race. What is the ratio of the downstream speed of Boat A to that of Boat B?
A man swims 1 km upstream in 1/4 hour. If the speed of the current is 1 km/ hour, in how many seconds can it swim 400 meters upstream?
If the difference between the downstream speed and upstream speed of a boat is 8 km/hr, what is the speed of stream?
If the ratio of the speed of stream to the speed of a boat in still water is 1 : 3, the downstream speed is what percentage of the upstream speed of the boat?
If a boat can cover 800 meters upstream in 200 seconds, in how many minutes can it cover 84 km downstream?
A boat goes 12 km downstream and comes back to the starting point in 4 hours. If the speed of the stream is half the speed of the boat in still water, what is the speed of the stream?
If the upstream speed and downstream speed of a boat are 9 km/hr and 36 km/hr, respectively, what is the speed of the boat in still water?
A man swims 5 km downstream in 1 hour. If the speed of the current is 1 km/hr, in how many minutes can he swim 200 meters upstream?
314 videos170 docs185 tests

314 videos170 docs185 tests
