SOLUTION: A 100-kilogram salt solution originally 4% by weight. Salt in water is boiled to reduce water content until the concentration is 5% by weight salt. How much water is evaporated?

Question 334078: A 100-kilogram salt solution originally 4% by weight. Salt in water is boiled to reduce water content until the concentration is 5% by weight salt. How much water is evaporated?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
In words:
(kg of salt in final solution)/(total kg of final solution) = 5%
Let = kg of water that needs to be evaporated
given:
Salt in original solution: kg
------------------------------------
The final solution has kg of salt plus water
The original kg of salt never changes, so It
stays at kg
I can't finish- have to go
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