Question Detail

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

  • 5 km/hr
  • 4 km/hr
  • 2 km/hr
  • 1 km/hr
Similar Questions :

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

  • 1/2 km/hr
  • 1/3 km/hr
  • 2 km/hr
  • 4 km/hr

2. 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

  • 11 kmph
  • 12 kmph
  • 14 kmph
  • 17 kmph

3. 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.

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

4. 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.

  • 4 hours
  • 5 hours
  • 6 hours
  • 7 hours

5. 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

  • 3:1
  • 1:3
  • 2:4
  • 4:2
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