Question

Pipes A and B can fill a tank in 10 minutes and 20 minutes, respectively whereas pipe C alone can empty full
tank in 12 minutes. A and C are opened together at 8 a.m. After half an hour. A is turned off and B is
opened, while C remained open right from 8 a.m. When will the tank be emptied?​

Answer 1

Answer:

8:12 a.m Is the correct Answer