SOLUTION: A large water tank has two inlet pipes (large one and small one) and one outlet pipe. It take 2 hours to fill the tank with the large inlet pipe. It take 6 hours to fill the tank w

Question 414369: A large water tank has two inlet pipes (large one and small one) and one outlet pipe. It take 2 hours to fill the tank with the large inlet pipe. It take 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 8 hours.
What fraction of the tank (initially empty) will be filled in 2.85 hours if all three pipes are in operation? Give your answer 2 decimal places.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A large water tank has two inlet pipes (large one and small one) and one outlet pipe.
It take 2 hours to fill the tank with the large inlet pipe.
It take 6 hours to fill the tank with the small inlet pipe.
The outlet pipe allows the full tank to be emptied in 8 hours.
What fraction of the tank (initially empty) will be filled in 2.85 hours if all three pipes are in operation?
Give your answer 2 decimal places.
:
Let the full tank = 1
:
+ - =
1.425 + .475 - .35625 = 1.54375, the tank will have overflowed:
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