Learn Aptitude: Boats And Streams

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A man can row 5 kmph in still water. If the river is running at 1kmph, it takes him 75minutes to row to a place and back. How far is the place?(i) 3km(ii) 2.5 km(iii) 4 km(iv) 5 km
A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:A. 8.5 km/hr B. 9 km/hrC. 10 km/hr D. 12.5 km/hr
A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:A. 4 B. 5C. 6 D. 10
A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?A. 2.4 km B. 2.5 kmC. 3 km D. 3.6 km
A boat covers a certain distance downstream in 1 hour, while it comes back in 3/2 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?A. 12 kmph B. 13 kmphC. 14 kmph D. 15 kmphE. None of these
A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:A. 1 km/hr B. 1.5 km/hrC. 2 km/hr D. 2.5 km/hr
IF a man rows at 6kmph is still water and 4:5kmph against the current, then his along the current is :
Speed of a boat in standing water is 9kmph and the speed of thestream is 1:5kmph. A man rows to a place at a distance of 10.5 km and comes back to the starting point. The total time taken by him is
A boat covers 24km upstream and 36km downstream in 6 hours whileit cover 35km upstream and 24km downstream in 6 ½ hours. Th  velocity of the current is
The speed of a boat in still water is 15km/hr and the rate of current is3 km/hr. the distance traveled downstream in 12 minutes is
A man can row 5kmph in still water. If the river is running at 1kmph,it makes him 75minutes to row to a place and back. How far is the place?
There is road besides 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?a. Both b. Boater c. Cyclist d. None of these
A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance funning downstream. What is the ratio between the speed of the boat and speed of the water current respectively?a. 2 : 1 b. 3 : 2 c. 8 : 3 d. None of these
A man can row at 5 km/hr in still water. If the velocity of current is 1 km/hr and it takes him 1 hour to row to a place and come back, how far is the place?
A motorboat, whose speed is 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is: