Final answer:
To make 9 hot cross buns instead of 12, Tia will need 360 grams of flour, 45 grams of sugar, 150 ml of milk, 0.75 eggs, 37.5 grams of butter, and 75 grams of currants.
Step-by-step explanation:
To find out the amount of each ingredient needed to make 9 hot cross buns instead of 12, we can use ratios. First, let's determine the ratio of each ingredient to the number of buns. The ratio for each ingredient is:
- Flour: 480 grams / 12 buns = 40 grams per bun
- Sugar: 60 grams / 12 buns = 5 grams per bun
- Milk: 200 ml / 12 buns = 16.67 ml per bun
- Egg: 1 egg / 12 buns = 0.083 eggs per bun
- Butter: 50 grams / 12 buns = 4.17 grams per bun
- Currants: 100 grams / 12 buns = 8.33 grams per bun
Now, we can multiply each ratio by 9 to find the amounts needed for 9 buns:
- Flour: 40 grams/bun * 9 buns = 360 grams of flour
- Sugar: 5 grams/bun * 9 buns = 45 grams of sugar
- Milk: 16.67 ml/bun * 9 buns = 150 ml of milk
- Egg: 0.083 eggs/bun * 9 buns = 0.75 eggs (rounding to the nearest whole egg)
- Butter: 4.17 grams/bun * 9 buns = 37.5 grams of butter
- Currants: 8.33 grams/bun * 9 buns = 75 grams of currants