SOLUTION: A container is half full. After 20 ounces are poured out, the container is 1/3 full. Find the number of ounces in the container when it is full.

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Question 606560: A container is half full. After 20 ounces are poured out, the container is 1/3 full. Find the number of ounces in the container when it is full.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let x+ = ounces when it is full
+x%2F2+ = ounces when it is half full
+x%2F3+ = ounces when it is 1/3 full
given:
+x%2F2+-+20+=+x%2F3+
Multiply both sids by 6
+3x+-+120+=+2x+
+x+=+120+
It contains 120 ounces when full