A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened, What is the total time taken to fill the tank completely ?

A tap can fill a tank in 6 hours. After half the tank is filled, three

1.	A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened, What is the total time taken to fill the tank completely ?
A.	4 hrs.
B.	3 hrs. 45 mins.
C.	3 hrs. 15 mins.
D.	4 hrs. 15 mins.
Answer» C. 3 hrs. 15 mins.

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A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened, What is the total time taken to fill the tank completely ?

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