Boats and Streams - Aptitude Questions and Answers Part 3
11. A boat rows at 6 kmph in still water between two points 36 km apart. If it takes 8 hours to less to cover this distance downstream than upstream, what is the speed of the stream?
a. 2 kmph
b. 2.5 kmph
c. 3 kmph
d. 4 kmph
12. A boat sails at a speed of 15 kmph in still waters. It travels 30 km downstream and comes back in four and a half hours. What is the speed of the stream?
a. 5 km/h
b. 6 km/h
c. 25 km/h
d. 50 km/h
13. A steamer takes 8 minutes to cover a distance of 4.8 km downstream while it takes 9 minutes to come back to the same spot upstream. Find the speed of the current.
a. 2 kmph
b. 2.4 kmph
3. 3 kmph
4. 3.2 kmph
14. Give:
Speed of boat in still water = 9 kmph
Speed of water current = 1.5 kmph
Find the time taken by the boat to go 105 km downstream and come back.
a. 16 hours
b. 18 hours
c. 20 hours
d. 24 hours
15. Given:
Distance between points A and B = 6 km
| Total time taken = | 11 | hours |
| 20 |
Find the speed of boat in still water.
a. 11 km/h
b. 22 km/h
c. 33 km/h
d. 44 km/h
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