# Boats and Streams

Boats and Streams: Boats and Streams Formula, Boats and Streams Questions, Boats and Streams Problems and Boats and Streams Tricks for solving exercises

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## Online Aptitude Questions with Answers on Relative Velocity

Q36. **A man rows his boat 85 km downstream and 45 km upstream, taking 2.5 hours each time. Find the speed of the stream.**

1.  5 kmph
2.  6 kmph
3.  7 kmph
4.  8 kmph

Solution : 8 kmph
Q37. **A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?**

1.  20/6 hours
2.  27/2 hours
3.  30 hours
4.  30/13 hours

Solution : 30/13 hours

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Q38. **The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream?**

1.  12 kmph
2.  13 kmph
3.  14 kmph
4.  15 kmph

Solution : 14 kmph
Q39. **A man can row 30 km downstream and 20 km upstream in 4 hours. He can row 45 km downstream and 40 km upstream in 7 hours. Find the speed of man in still water?**

1.  15 kmph
2.  10 kmph
3.  12 kmph
4.  12.5 kmph
5.  None of these

Solution : 12.5 kmph

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Q40. **A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?**

1.  13, 3
2.  12, 6
3.  15, 3
4.  14, 4
5.  None of these

Solution : 14, 4
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