RRB Group D · Pipes and Cisterns · Quiz
5 real RRB Group D questions on Pipes and Cisterns. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
MEDIUMTwo pipes A and B can fill a tank in 12 hours and 18 hours respectively. Both pipes are opened together but after 3 hours, pipe A is closed. How much more time will it take for pipe B to fill the remaining tank?