What is the percentage of iron in the ore if 300 tons of iron ore contain 24 tons of iron?

In order to find what percentage of iron in the ore, if 300 tons of iron ore contain 24 tons of iron, we will compose and decide the proportion.

Let’s take all available iron ore as 100%, then x% is the percentage of iron in it.

Let’s compose and solve the proportion.

300 tons – 100%;

24 tons – x%.

300/24 = 100 / x;

We need to find the unknown extreme term of the proportion. For this, we divide the product of the middle terms by the known extreme.

x = (24 * 100) / 300 = 2400/300 = 8 tons of iron.