If 2/5th of a cistern is filled in 6 minute, then what is the time needed to fill the remaining part?

If 2/5th of a cistern is filled in 6 minute, then what is the time nee

1.	If 2/5th of a cistern is filled in 6 minute, then what is the time needed to fill the remaining part?
A.	8
B.	9
C.	12
D.	10
Answer» C. 12

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If 2/5th of a cistern is filled in 6 minute, then what is the time needed to fill the remaining part?

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