Q62
Pipes A, B and C can fill an empty tank in 307 hours, if all the three pipes are opened simultaneously. A and B are filling pipes and C is an emptying pipe. Pipe A can fill tank in 15 hours and pipe C can empty it in 12 hours. In how long (in hours) can pipe B alone fill the empty tank?
Pipes A, B and C can fill an empty tank in hours, if all the three pipes are opened simultaneously. A and B are filling pipes and C is an emptying pipe. Pipe A can fill tank in 15 hours and pipe C can empty it in 12 hours. In how long (in hours) can pipe B alone fill the empty tank?
A.
4
AnswerB.
6
C.
3
D.
5
Answer: Option A
Solution
Answer: Option A
Solution:
A + B + C = 14
4 + B - 5 = 14
B = 15 unit
B = = 4 hours