SOLUTION: A faucet can fill a tank in 6 hours when the tank is filled half the similar three taps are opened and how long it will take to fill the tank

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Question 988245: A faucet can fill a tank in 6 hours when the tank is filled half the similar three taps are opened and how long it will take to fill the tank
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
Since it takes 1 faucet 6 hours to fill the tank, it will fill 
half the tank in 3 hours.

Then when three more faucets are opened, there will be 4 faucets 
filling it, so the second half of the tank will be filled 4 times
as fast as the first half was filled. So that will take only 1/4th
of the time it took to fill the first half, and 1/4th of 3 hours
is 3/4th of an hour or 45 minutes.  So it will take a total of
3 hours and 45 minutes.

Edwin