Question

A recipe for 6 people uses the following ingredients. 120gm in flour, 45 grams of fat and 2 eggs. How much of each ingredient Pat will need to make the recipe for 9 people?

Answer 1

flour`=180g`
fat`=67.5g`
eggs`=3`

Explanation:

I would try to find the amout of ingredients for one person as:
flour `120/6=20g`
fat `45/6=7.5g`
eggs `2/6=1/3`
Now I multiply the quantities for one person times `9` to get:
flour`=20xx9=180g`
fat`=7.5xx9=67.5g`
eggs`=1/3xx9=3`