How much water do you need to add 200 g of sugar to get a 15% solution?

Let’s take the amount of water as x, then:

x + 200 is the mass of the resulting solution;

200: (x + 200) * 100 – concentration.

Since the concentration is 15% by condition, we get the equation:

200: (x + 200) * 100 = 15;

200: (x + 200) = 0.15;

0.15x + 30 = 200;

0.15x = 200-30;

x = 1133.

Answer: you need to take 1133 g of water.



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