Boats and Streams33

A man can row 18 kmph in still water. It takes him thrice as long to row up as to row down the river. Find the rate of stream. A. 9km/hr B. 11km/hr C. 13km/hr D. 15km/hr
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Speed of a boat in still water is 8 kmph and speed of stream is 1.5 kmph. A man rows to a place at a distance of 61.75 km and come back to starting point. The total time taken by him. A. 16hrs B. 18hrs C. 20hrs D. 22hrs
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A man takes 3 hours 45 minutes to row a boat 22.5 km downstream of a river and 2 hours 30 minutes to cover a distance of 10 km up stream. Find the speed of the river current in km/hr. A. 1 km/hr B. 2km/hr C. 3km/hr D. 4km/hr
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The speed of a boat when travelling downstream is 32 kmph whereas when travelling upstream it is 28 kmph. What is the speed of the boat in still water? A. 27 kmph B. 29 kmph C. 31 kmph D. None of these
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If downstream speed of a boat is 16 kmph and its upstream speed is 11 kmph, what is the speed of stream? A. 2.5 kmph B. 3.5 kmph C. 4.5 kmph D. 5.5 kmph
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A sailor sails a distance of 48 km along the flow of a river in 8 h. If it takes 12 h to return the same distance, then the speed of the flow of the river is A. 1 km/hr B. 2 km/hr C. 3 km/hr D. 4 km/hr
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A man can row at 10 kmph in still water. If it takes a total of 5 hours four him to go to a place 24 km away and return, then the speed of the water current is : A. 8 B. 6 C. 4 D. 2
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A boat running downstream covers a distance of 30km in 2hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed A. 10 Km/hr B. 8 Km/hr C. 6 Km/hr D. 4 Km/hr
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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. 6 hours 50 minutes B. 12 hours 10 minutes C. 5 hours 50 minutes D. 6 hours
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The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is A. 3km B. 3.6 km C. 4km D. 4.6km
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A man speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man speed against the current is A. 10 km/hr B. 9 km/hr C. 8 km/hr D. 7 km/hr
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Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is A. 20 hours B. 22 hours C. 24 hours D. 26 hours
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A boat takes 4 hours for travelling downstream from point A to point B and coming back to pint A upstream. If the velocity of the stream is 2 Km/hr and the speed of the boat in still water is 4 Km/hr. A. 9 Km B. 11 Km C. 13 Km D. 15 Km
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A boat running downstream covers a distance of 16 Km in 2 hours, while covering the same distance upstream it takes 4 hours. What is the speed of the boat in still water ? A. 8 Km/hr B. 6 Km/hr C. 10 Km/hr D. 12 Km/hr
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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. 2.4 km B. 2 km C. 2.6 km D. 3 km
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A man can row 8 Kmph in still water. If the velocity of the current is 2 Kmph and it takes him 2 hours to row to a place and come back. How far is the place? A. 7.5 km B. 7 km C. 8 km D. 8.5 km
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