Pipes A, B and C together can fill a cistern in 12 hours. All the three pipes are opened together for 4 hours and then C is close. A and B together take 10 hours to fill the remaining part of the cistern. C alone will fill two - thirds the cistern in:

Pipes A, B and C together can fill a cistern in 12 hours. All the thre

1.	Pipes A, B and C together can fill a cistern in 12 hours. All the three pipes are opened together for 4 hours and then C is close. A and B together take 10 hours to fill the remaining part of the cistern. C alone will fill two - thirds the cistern in:
A.	48 hours
B.	50 hours
C.	60 hours
D.	40 hours
Answer» E.

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Pipes A, B and C together can fill a cistern in 12 hours. All the three pipes are opened together for 4 hours and then C is close. A and B together take 10 hours to fill the remaining part of the cistern. C alone will fill two - thirds the cistern in:

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