SOLUTION: A large tank contains 100 gallons of pure water. How many gallons of a saline solution containing 25% salt must be added to obtain a solution that has 10% salt ?
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Question 341819: A large tank contains 100 gallons of pure water. How many gallons of a saline solution containing 25% salt must be added to obtain a solution that has 10% salt ? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! water 100 gallons 0%
saline 25% x gallons
total 10% x+100
..
0+ 25x=10(x+100)
25x=10x+1000
25x-10x=1000
15x= 1000
x= 1000/15
x= 66.66 gallons of water
