Boats and Streams Questions Answers Online Quiz Test

• 1. A man can row upstream 10 kmph and downstream 20 kmph. Find the man rate in still water and rate of the stream.

  1. 0,5
  2. 5,5
  3. 15,5
  4. 10,5

• 2. A man takes 3 hours 45 minutes to row a boat 15 km downstream of a river and 2 hours 30 minutes to cover a distance of 5 km upstream. Find the speed of the current.

  1. 1 km/hr
  2. 2 km/hr
  3. 3 km/hr
  4. 4 km/hr

• 3. In one hour, a boat goes 11km along the stream and 5 km against it. Find the speed of the boat in still water

  1. 6
  2. 7
  3. 8
  4. 9

• 4. A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is

  1. 2 km/hr
  2. 3 km/hr
  3. 4 km/hr
  4. 5 km/hr

• 5. If Rahul rows 15 km upstream in 3 hours and 21 km downstream in 3 hours, then the speed of the stream is

  1. 5 km/hr
  2. 4 km/hr
  3. 2 km/hr
  4. 1 km/hr

• 6. A man can row \begin{aligned} 9\frac{1}{3} \end{aligned} kmph in still water and finds that it takes him thrice as much time to row up than as to row, down the same distance in the river. The speed of the current is.

  1. \begin{aligned} 3\frac{2}{3}kmph \end{aligned}
  2. \begin{aligned} 4\frac{2}{3}kmph \end{aligned}
  3. \begin{aligned} 5\frac{2}{3}kmph \end{aligned}
  4. \begin{aligned} 6\frac{2}{3}kmph \end{aligned}

• 7. A man rows 750 m in 675 seconds against the stream and returns in 7 and half minutes. His rowing speed in still water is

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

• 8. If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 3 kmph, then the speed of the boat in still water is

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

• 9. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat in still water and stream is

  1. 3:1
  2. 1:3
  3. 2:4
  4. 4:2

• 10. A man's speed with the current is 20 kmph and speed of the current is 3 kmph. The Man's speed against the current will be

  1. 11 kmph
  2. 12 kmph
  3. 14 kmph
  4. 17 kmph

• 11. A boat can travel with a speed of 16 km/hr in still water. If the rate of stream is 5 km/hr, then find the time taken by the boat to cover distance of 84 km downstream.

  1. 4 hours
  2. 5 hours
  3. 6 hours
  4. 7 hours

• 12. A man can row at 5 kmph in still water. If the velocity of the current is 1 kmph and it takes him 1 hour to row to a place and come back. how far is that place.

  1. .4 km
  2. 1.4 km
  3. 2.4 km
  4. 3.4 km

• 13. The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is

  1. 1.6 km
  2. 2 km
  3. 3.6 km
  4. 4 km

• 14. Sahil can row 3 km against the stream in 20 minutes and he can return in 18 minutes. What is rate of current ?

  1. 1/2 km/hr
  2. 1/3 km/hr
  3. 2 km/hr
  4. 4 km/hr