Question

Ming is making cookies.To make 30 cookies, his recipe requires 3 eggs. Using this recipe, what is the total number of eggs he will need to make 120 cookies

Answer 1

12 eggs

Explanation:

Number of eggs Ming needed to make 30 cookies = 3 eggs

We need to find how many eggs does he need to make 120 cookies. We can solve this problem by unity method i.e. find the quantity of egg needed for 1 cookie and then multiplying it by 120 to get the number of eggs needed for 120 cookies.

Number of eggs Ming needed to make 30 cookies = 3 eggs

Dividing both sides by 30, we can write:

Number of eggs Ming needed to make 1 cookie =
`(3)/(30)` eggs

Multiplying both sides by 120, we can write:

Number of eggs Ming needed to make 120 cookies =
`(3)/(30) * 120 = 12` eggs

This means, Ming needs 12 eggs to make 120 cookies according to his recipe.