Question

Here are the ingredients for making pineapple sorbet for 6 people.

800g pineapple
4 egg whites
1/2 lemon
100g cast sugar

Ann makes pineapple sorbet for 9 people.
Work out how much pineapple she uses

Answer 1

800/6=pineapple for one person.
133.3*9=1,200.
Hope this helps.
Answer is 1,200g pineapple

Answer 2

This is a ratio problem

6 / 800 = 9 / n (can say as 6 is to 800g as 9 is to n grams)

6n = 800(9) --- by multiplying means and extremes

n = 7200 / 6 divide by 6 to isolate n

n = 1200g

plug in to check 6 / 800 = 0.0075 9 / 1200 = 0.0075