Quantitative Reasoning Boats and Stream Mcqs Test Online

1. A boat, while going down-stream in a river covered a distance of 50 miles at an average speed of 60 miles per hour. While returning,because of the water resistance,it took one hour fifteen minutes to cover the same distance.What was the average speed during the whole journey?

2. A Boatman rows to a place 45 km distant and back in 20 hours.He finds that he can row 12 km with the stream in the same time as 4 km against the stream.Find the speed of the stream.

3. Speed of a speedboat when moving in the direction perpendicular to direction of the current is 16 km/h. speed of the current is 3 km per hour. So the speed of the boat against the current will be (in km/h)

4. A motor boat whose speed is 15 km/hr in still water goes 30 km downstream and comes back in four and a half hours.The speed of the stream is?

5. Raoul can row a certain distance downstream in 6 hours and return the same distance in 9 hours.If the speed of Raoul in still water is 12 km/hr.find the speed of the stream.

6. A boat goes 24 km upstream and 28 km downstream in 6 hours.It goes 30 km upstream and 21 km downstream in 6 hours and 30 minutes.The speed of the boat in still water is?

7. A man rows to a place 48 km distant and 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?

8. A man can row 4.5 km/h in still water and he finds that it takes him twice as long to row up as to tow down the river. Find the rate of the stream.

9. The speed of  a boat in still water is 4 km/hr and the speed of current is 2 km/hr.If the time taken to reach a certain distance upstream is 9 hours, the time it will take to go to same distance downstream is?

10. A man wishes to cross a river perpendicularly. In still waters,he takes 4 minutes to cross the river.but in flowing river he takes 5 minutes.If the river is 100 meters wide,then the velocity of the flowing water of the river is?