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Pipes A and B can empty a full tank in 5 hours and 12 hours respectively. Pipe C can fill the same empty tank in 2 hours. If all the three pipes are opened together, then the tank will be filled in:

A50/13 hrs

B65/12 hrs

C60/13 hrs

D55/12 hrs

Answer:

C. 60/13 hrs

Read Explanation:

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