Problema Solution
Some water that is 96% pure is mixed with 10 gallons of water that is 99% pure to produce water that is 96.5% pure. How many total gallons of water were mixed together?
Answer provided by our tutors
96x + 10 * 99 = (10 + x) * 96.5
0.5x = 990 - 965 = 25
x = 25/0.5 = 50
Total gallon = 50 + 10 = 60 gallons