SOLUTION: a soliution of salt and water contains 5% salt.of it 20 kg water evaporates and the solution now contains 15% of salt.find the origional quantity of solution?

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Question 771849: a soliution of salt and water contains 5% salt.of it 20 kg water evaporates and the solution now contains 15% of salt.find the origional quantity of solution?
Answer by lwsshak3(11628) About Me  (Show Source):
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a soliution of salt and water contains 5% salt.of it 20 kg water evaporates and the solution now contains 15% of salt.find the origional quantity of solution?
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let x=amt of original 5% solution.
5%x=15%(x-20)
.05x=.15x-3
.10x=3
x=30
amt of original 5% solution=30 kg