Question (17/28)
Pipe A can fill the tank 3 times as fast as pipe B. If both pipes together can fill tank in 36 minutes, then how much time will pipe B alone take to fill the tank?(A) 80 minutes
(B) 120 minutes
(C) 144 minutes
(D) 183 minutes
Question (18/28)
Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately ?(A) 2 Hours
(B) 4 Hours
(C) 6 Hours
(D) 8 Hours