Question

This recipe makes 20 portions of potato soup.

Richard follows the recipe but wants to make 4 portions.
Complete the amounts of each ingredient that he needs.
Recipe: Serves 20
120 ml oil
280 g onions
1.8 kg potatoes
2.2 l milk"

a) 24 ml oil, 56 g onions, 360 g potatoes, 440 ml milk
b) 48 ml oil, 112 g onions, 720 g potatoes, 880 ml milk
c) 30 ml oil, 70 g onions, 450 g potatoes, 550 ml milk
d) 60 ml oil, 140 g onions, 900 g potatoes, 1100 ml milk

Answer 1

The correct amounts of ingredients Richard needs to make 4 portions of potato soup are 24 ml of oil, 56 g of onions, 360 g of potatoes, and 440 ml of milk, which corresponds to option a).

Step-by-step explanation:

To answer the student's question which asks for the correct amounts of each ingredient required to make 4 portions of potato soup from a recipe that makes 20 portions, we start by dividing the quantity of each ingredient by 20 to find out the amount needed for a single portion. Once we have the amount for one portion, we then multiply by 4 to find the amounts needed for 4 portions.

• Oil: 120 ml ÷ 20 = 6 ml for one portion. For 4 portions: 6 ml × 4 = 24 ml.
• Onions: 280 g ÷ 20 = 14 g for one portion. For 4 portions: 14 g × 4 = 56 g.
• Potatoes: 1.8 kg (or 1800 g) ÷ 20 = 90 g for one portion. For 4 portions: 90 g × 4 = 360 g.
• Milk: 2.2 l (or 2200 ml) ÷ 20 = 110 ml for one portion. For 4 portions: 110 ml × 4 = 440 ml.

Therefore, the correct amounts Richard needs to follow the recipe to make 4 portions of potato soup are: 24 ml oil, 56 g onions, 360 g potatoes, and 440 ml milk. The answer is option a).