(2) To make a protein shake you need to mix 5 parts of skimmed milk with 2 parts of oats, and 1 part of crushed almonds. How much oats and how much crushed almond must be used if 500 ml of skimmed milk is used? TOTAL QUESTION 3: [24]

1. The ratio of ingredients is given as: - Skimmed milk : Oats : Crushed almonds = \(5 : 2 : 1\). 2. Since \(500\) ml of skimmed milk corresponds to \(5\) parts, one part is: \[ \text{One part} = \frac{500 \text{ ml}}{5} = 100 \text{ ml}. \] 3. Therefore, the required amount of oats is: \[ \text{Oats} = 2 \times 100 \text{ ml} = 200 \text{ ml}. \] 4. And the required amount of crushed almonds is: \[ \text{Crushed almonds} = 1 \times 100 \text{ ml} = 100 \text{ ml}. \] Thus, if \(500\) ml of skimmed milk is used, you must use \(200\) ml of oats and \(100\) ml of crushed almonds.