WBCS.LIVE practice question

A tank is filled by three pipes A, B and C in 4 hours. Pipe C is twice as fast as pipe B, and pipe B is twice as fast as pipe A. How much time will take A to fill the tank?

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

Answer options

  1. 25 hrs
  2. 26 hrs
  3. 20 hrs
  4. 28 hrs

Correct answer and explanation

Correct answer: 28 hrs