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.Management Sciences
Category: Boats and Streams
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 it take to go 5 km in stationary water?
A. 40 minutes
B. 1 hour
C. 1 hr 15 min
D. 1 hr 30 min
A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?
A. 2 kmph
B. 8 kmph
C. 16 kmph
D. 4 kmph
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The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______?
A. 5 hours 50 min
B. 6 hours
C. 6 hours 50 min
D. 12 hours 10 min
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A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is________?
A. 10 kmph
B. 5 kmph
C. 20 kmph
D. 22 kmph
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A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
A. 60 kmph
B. 10 kmph
C. 30 kmph
D. 5 kmph
(more…)
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