How many kg of pure salt must be added to 40 kg of 4% solution of salt and water to increase it to 12% solution?

How many kg of pure salt must be added to 40 kg of 4% solution of salt

1.	How many kg of pure salt must be added to 40 kg of 4% solution of salt and water to increase it to 12% solution?
A.	2.04 kg
B.	2.64 kg
C.	3.14 kg
D.	3.64 kg
E.	5.64 kg
Answer» E. 5.64 kg

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How many kg of pure salt must be added to 40 kg of 4% solution of salt and water to increase it to 12% solution?

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