Three pipes, A, B and C, can fill a cistern in 12, 18 and 24 minutes, respectively, If all the pipes are opened together for 7 minutes, what will be the volume of the water that overflows as the percentage of the total volume of the cistern?

Three pipes, A, B and C, can fill a cistern in 12, 18 and 24 minutes,

1.	Three pipes, A, B and C, can fill a cistern in 12, 18 and 24 minutes, respectively, If all the pipes are opened together for 7 minutes, what will be the volume of the water that overflows as the percentage of the total volume of the cistern?
A.	\(26\frac{7}{{18}}\)
B.	\(26\frac{5}{{18}}\)
C.	\(23\frac{1}{3}\)
D.	\(23\frac{2}{3}\)
Answer» B. \(26\frac{5}{{18}}\)