You need to make 300 grams of 10% salt solution. How much do you need to take 15% solution and water for this?

univerkov | December 12, 2020 | education

We write the condition (equation)
15% + 0% = 10%
x (g) + y (g) = 300 (g)
You write further:
15 * x + 0 * y = 300 * 10
15x +0 = 3000
15x = 30000
X = 200 g (mass of solution)
Water mass = 300-200 = 100 g
Answer. 100 g and 200 g

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