The chef made 12 servings from 18 potatoes.
Given that, a chef cooks 1½ potatoes for each serving of mashed potatoes.
We need to find how many servings can he make from 18 potatoes.
The unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit. It is a method that we use for most of the calculations in math. You will find this method useful while solving questions on ratio and proportion, algebra, geometry, etc.
Now, 1½ can be written as 3/2.
So, the number of servings he made from 18 potatoes=18/(3/2)=12
Therefore, the chef made 12 servings from 18 potatoes.
To learn more about the unitary method visit:
https://brainly.com/question/22056199.
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