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In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water in ( km/hr) is
A. 3
B. 5
C. 8
D. 9

Read Solution (Total 1)

answer:c

downstream 11kmph
upstream 5kmph

rate of boat in still 1/2(11+5)=8
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GENPACT Other Question

There is a road beside a river.Two friends started from a place A, moved to a temple situated at another place B and then returned to A again. One of them moves on a cycle at a speed of 12 km/hr, while the other sails on a boat at a speed of 10 km/hr. If the river flows at the speed of 4 km/hr, which of the two friends will return to place A first ?
A. 5.4 km /hr
B. 7.2 km /hr
C. 8.4 km/hr
D. 9.6 km /hr A man can row three - quarters of a kilometer against the stream in 45/4minutes. The speed(in km/hr) of the man in still water is
A. 2 B. 3
C. 4 D. 5