Get Started
876

Q:

A pump can fill a cistern in 40 minutes and another pump can empty the filled up cistern in 1 hour. By mistake, without closing the second pump, the first pump is opened. The time in which the empty cistern will be filled up is

  • 1
    3 hours
  • 2
    4 hours
  • 3
    1 hours
  • 4
    2 hours
  • Show Answer
  • Workspace

Answer : 4. "2 hours"

The Most Comprehensive Exam Preparation Platform

Get the Examsbook Prep App Today