SOLUTION: How much salt must be evaporated for 120 kg of solution which is 3% salt to make a solution of 5% salt?

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Question 536337: How much salt must be evaporated for 120 kg of solution which is 3% salt to make a solution of 5% salt?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How much water must be evaporated for 120 kg of solution which is 3% salt to make a solution of 5% salt?
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Equation:l
water - water = water
0.97*120 - 1x = 0.95(120-x)
97(120)- 100X = 95*120-95X
2(120)=5X
X = 48 kg (amt. of water that must be evaporated)
Cheers,
Stan H.