Multiple choice

The time taken to row a same distance against the stream is triple than in the favour of the stream. Find the ratio of the speed of the stream to the speed of boat in still water.

  1. 1 : 3

  2. 1 : 2

  3. 2 : 1

  4. 3 : 1

  5. 1 : 1

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let the speed going upstream be x kmph. Then speed going downstream be 3x kmph. Therefore, (speed of stream) : (speed of boat in still water) = ((3x - x)/2) : ((3x + x)/2) =1 : 2