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Mathematics

Boats And Streams MCQs

Practice Boats And Streams MCQs for competitive exams.

Boats And Streams MCQs

Practice questions from this topic.

A boat can go 5 km upstream and 7(1)/(2) km downstream in 45 minutes. If can also go 5 km downstream and 2.5 km upstream in 25 minutes. How much time (in minutes) will it take to go 6 km upstream?

  1. A. 30
  2. B. 36
  3. C. 24
  4. D. 32
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The speed of a boat in still water is 18 km/h and the speed of the current is 6 km/h. In how much time (in hours) will the boat travel a distance of 90 km upstream and the same distance downstream?

  1. A. 9(1)/(2)
  2. B. 11(1)/(4)
  3. C. 12
  4. D. 10
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A swimmer swims from a point P against the current for 6 min and then swims back along the current for next 6 min and reaches at a point Q. If the distance between P and Q is 120 m then the speed of the current (in km/h) is:

  1. A. 0.4
  2. B. 0.2
  3. C. 1
  4. D. 0.6
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A boat can go 40 km downstream and 25 km upstream in 7 hours 30 minutes. It can go 48 km downstream and 36 km upstream in 10 hours. What is the speed (in km/h) of the boat in still water?

  1. A. 6
  2. B. 12
  3. C. 9
  4. D. 15
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The speed of a boat in still water is 15 km/h, and the speed of the current is 5 km/h. In how much time (in hours) will the boat travel a distance of 60 km upstream and the same distance downstream?

  1. A. 10 hr
  2. B. 9 hr
  3. C. 20 hr
  4. D. 12 hr
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A motor boat can travel 40 km downstream and 30 km upstream in 10 hours. It can travel 80 km downstream and 40 km upstream in 15 hours. Find the speed of the boat in still water.

  1. A. 4 km/h
  2. B. 10 km/h
  3. C. 16 km/h
  4. D. 8 km/h
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Two boat are travelling with speed of 36 km/hr and 54 km/hr respectively towards each other. What is the distance (in metres) between the two boats one second before they collide?

  1. A. 10
  2. B. 15
  3. C. 25
  4. D. 5
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A man rows a boat a certain distance downstream in 9 hours, while it takes 18 hours to row the same distance upstream. How many hours will it take him to row (3)/(5) of the same distance in still water?

  1. A. 9.5
  2. B. 7.2
  3. C. 10
  4. D. 12
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A boat can cover a distance of 56 km downstream in 3.5 hours. The ratio of the boat in still water and the speed of stream is 3 : 1. How much time (in hours) will the boat take to cover a distance of 41.6 km downstream?

  1. A. 2.1
  2. B. 1.5
  3. C. 2.6
  4. D. 1.8
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A boat moves 25 km upstream and 39 km downstream in 8 hours. It travels 35 km upstream and 52 km downstream in 11 hours. What is the speed of the stream if it travels at a uniform speed?

  1. A. 4 km/h
  2. B. 5 km/h
  3. C. 6 km/h
  4. D. 3 km/h
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A motorboat goes 24 km in 2 hour along the stream and 10 km in 1 hour against the stream. The speed of the motorboat in kilometres per hour, is:

  1. A. 14
  2. B. 10
  3. C. 11
  4. D. 12
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A man rows to a place 48 km distant and comes 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 speed of the stream is:

  1. A. 1.5 km/h
  2. B. 3.5 km/h
  3. C. 1.8 km/h
  4. D. 1 km/h
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