SOLUTION: One hundred liters of a salt and water solution contains 1% salt. After some of the water has evaporated, the solution contains 5% salt. How many liters of water evaporated?

Question 937860: One hundred liters of a salt and water solution contains 1% salt. After some of the water has evaporated, the solution contains 5% salt. How many liters of water evaporated?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = liters of water evaporated
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quantity of salt equation:
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0.01*100 = 0.05*(100 - x)
1 = 5 - 0.05x
0.05x = 4
x = 4/0.05
x = 80
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