SOLUTION: If a vat is 15% full of oil, and adding an additional 144 liters of oil makes it 75% full, then how much oil is in the container when it is full?

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Question 709528:
If a vat is 15% full of oil, and adding an additional 144 liters of oil makes it 75% full, then how much oil is in the container when it is full?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
.15X+144=.75X
.15X-.75X=-144
-.60X=-144
X=-144/-.60
X=240 LITERS IS THE CAPACITY OF THE VAT.
PROOF:
.15*240+144=.75*240
36+144=180
180=180