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.Management Sciences
Category: Boats and Streams
A boat takes half time in moving a certain distance downstream than upstream. What is the ratio between the rate in still water and rate of current?
0
A. 1 : 2
B. 3 : 1
C. 2 : 1
D. 1 : 3
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The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is_______?
A. 5km/hr
B. 8 km/hr
C. 10 km/hr
D. 15 km/hr
A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will he take to go 5km in stationery water?
A. 40 Minutes
B. 1 Hour
C. 1 hr 15 Min
D. 1 Hr 30 Min
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A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?
A. 3 kmph
B. 1.5 kmph
C. 13 kmph
D. 6.5 kmph
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A boat can move upstream at 25 kmph and downstream at 35 kmph, then the speed of the current is_________?
A. 5 kmph
B. 10 kmph
C. 30 kmph
D. 15 kmph
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