What percentage of salt is in the solution if 200 g of the solution contains 150 g of water?

In order to find how many percent of the salt is contained in the solution, if 200 grams of the solution contains 150 grams of water, we will compose and solve the proportion.

Let’s take the weight of the entire solution as 100%. Let’s calculate how much salt is in the solution:

200 – 150 = 50 grams of salt in solution.

Let us denote by the variable x the percentage of salt in the solution.

Let’s make the proportion:

200 grams – 100%;

50 grams – x%.

We got the proportion:

200/50 = 100 / x;

We are looking for an unknown extreme member of the proportion:

x = (50 * 100) / 200 = 5000/200 = 25% salt in solution.