Two pipes A and B can fill a tank in 12 minutes and 15 minutes, respec – McqOptions

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1.	Two pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively. When an outlet pipe C is also opened, then the three pipes together can fill the tank in 10 minutes. In how many minutes can C alone empty the full tank?
A.	18
B.	20
C.	16
D.	24
Answer» C. 16

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