Art of Problem Solving

2005 iTest Problems/Problem 14: Revision history

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13 October 2025

  • curprev 20:0720:07, 13 October 2025 Mathloveryeah talk contribs 684 bytes +684 Created page with "==Problem== A bottle contains <math>5</math> gallons of a <math>10\%</math> solution of oil. How many gallons of pure oil must be added to make a <math>30\%</math> oil solutio..."