WBCS.LIVE practice question

The speed of the stream is 4 km/h. A boat can cover a distance of 40 km downstream and 12 km upstream in 4 hours. Find the speed of the boat (in km/h) in still water.

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 16 km/h
  2. 12 km/h
  3. 10 km/h
  4. 14 km/h

Correct answer and explanation

Correct answer: 12 km/h