A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3km/hr, the distance A and B is:_______?
A. 4km
B. 6 km
C. 8 km
D. 12 km
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A man can row three-quarters of a kilometer against the stream in 11 ¼ minutes and return in 7 ½ minutes. The speed of the man in still water is________?
A. 2km/hr
B. 3km/hr
C. 4 km/hr
D. 5 km/hr
A boat goes 6 km in an hour in still water. It takes thrice as much time in covering the same distance against the current. Speed of the current is_______?
A. 2 km/hr
B. 3km/hr
C. 4km/hr
D. 5 km/hr
A boat running upstream takes 8 hours 48 min to cover a certain distance while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and the speed of water current respectively?
A. 2 : 1
B. 3 : 1
C. 8 : 3
D. Cannot be determined
In a river, a man takes 3 hours in rowing 3 km upstream or 15 km downstream. What is the speed of the current?
A. 2km/hr
B. 4km/hr
C. 6km/hr
D. 9km/hr
A boat goes 24 km downstream in 10 hours, it takes 2 hours more to cover the same distance against the stream. What is the speed of the boat in still water?
A. 2km/hr
B. 2.8 km/hr
C. 4 km/hr
D. 4.2 km/hr
E. None of these
A boat is rowed downstream at 15.5km/hr and upstream at 8.5 km/hr. The speed of the stream is________?
A. 3.5km/hr
B. 5.75km/hr
C. 6.5km/hr
D. 7km/hr
A boat running downstream covers 24 km’s in 4 hours while for covering the same distance upstream it takes 6 hours whats the speed of the boat in still water?
A. 3.5km/hr
B. 5.5 km/hr
C. 6 km/hr
D. Data Inadequate
E. None of these
A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?
A. 13, 3
B. 12, 6
C. 15, 3
D. 14, 4
A person can row at 9 kmph and still water. He takes 4 1/2 hours to row from A to B and back. What is the distance between A and B if the speed of the stream is 1 kmph?
A. 32 km
B. 25 km
C. 28 km
D. 24 km
E. None of these