# Boat & Stream - Quantitative Aptitude Questions and Answers

This section focuses on "Boat and Stream" of Quantitative Aptitude. These Multiple Choice Questions (mcq) should be practiced to improve the Quantitative Aptitude skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. A boat takes 27 hrs to travel a distance upstream and takes 9hrs to travel the same distance downstream.
If the speed of the boat in still water is 12km/hr, then what is the velocity of the stream?

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2. A boat covers 12 km upstream and 18km downstream in 3hrs while it covers 18 km upstream and 12km
downstream in 3(1/4) hrs the velocity of the the boat upstream and downstream?

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3. If a boy rows 8 km downstream in 6 hours and 4 km upstream in 4 hours then how long
will he take to cover 16 km in stationary (still) water?

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4. A boat takes 24 hours to cover 128 km downstream and 16 hours to cover 64 km upstream. Then the speed of the boat in still water is:

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5. A pedal boat goes 12km upstream and 14km downstream in 3hrs. It goes 15km upstream and 10.5km
downstream in 3 hrs 15mints. The speed of the boat in still water is:

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6. A boatman can take the same time to row6.5km downstream and 3.5km upstream. His
speed in still water 2.5 km/hr. The speed of the stream is:

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7. A woman rows to a place 24km distant and come back in 7 hrs. She finds that she can
row 2km with the stream in the same time as 1.5km against the stream. The rate of the
stream is,

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8. A girl can row 15 kmph in still water and he finds that it takes him thrice as long to row up as to row down
the river. Find the rate of stream.

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9. A fisherman rows to a place 24km distance and back in 7 hours. He finds that he can row 2km with the
stream in the same time 1.5 km against the stream.The rate of the stream is?

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10. A boat goes 3.5km upstream in 24 mins and the speed of the stream is 1.5km per hour,
then the speed of the boat in still water is.

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11. A boat man lakes 5hrs 30 mins to row a boat 30km downstream of a river and 4 hrs
15mints to cover a distance of 10km upstream. Find the speed of the river current in km/hr.

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12. A man can row 4 km against the stream in 40mins and return in 36mins. Find the rate of current.

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13. Sakthi rows a boat at 4 km upstream in 1hour and 1 km downstream in 20 minutes.
How long will he take to reach 3.5km in still water?

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14. A motor boat sails 30 km of a river towards upstream in 10hrs. How long will it take to
cover the same distance downstream, if the speed of the current is ½ of the speed of the boat
in still water.

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15. A man goes 4km upstream of the stream in 2hr and goes 2km downstream of the stream in 20mints. How
long will it take to go 10km in stationary water?

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16. Mohana can row 80km upstream and 110km downstream in 26 hrs. Also she can 60km upstream and
88km downstream in 20 hrs. Find the speed of the girl in still water and the speed of the current in ratio:

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17. A motorboat running upstream takes 4 hrs 24 mins to cover a certain distance, while it takes 2hrs to cover
the same distance running downstream. What is the ratio between the speed of the boat and speed of the
water current respectively?

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18. A person can swim in water with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, what will be the time taken by the person to go 68 km downstream?

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19. In one hour, a boat goes 13 km/hr in the direction of the stream and 7 km/hr against the direction of the stream. What will be the speed of the boat in still water?

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20. A woman can row upstream at 16 km/hr and downstream at 26 km/hr. What is the speed of the stream?

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