A tap can fill a tank in 6 hours. When the tank is half full, three mo – McqOptions

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1.	A tap can fill a tank in 6 hours. When the tank is half full, three more similar taps are opened. Then what is the total time taken to fill the tank completely?
A.	3 hours
B.	7 hours
C.	5 hours
D.	3 hours 45 minutes
Answer» E.

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