Question

2 Arnold uses a recipe to make rock cakes. The ingredients are self-raising flour, butter and sugar in the ratio 7:3:2 by weight. Arnold has 900 g of self-raising flour, 600 g of butter and 450g of sugar. Each rock cake needs about 48 grams of mixture. Work out the largest number of rock cakes that Arnold can make.​

Answer 1

6

Explanation:

7:3:2

total ratio = 12

total mass of ingredients = 1950g

largest number of rock cakes= 9x100, 2x3x100, 9x5x100

=3×100=300

300÷48= 6.25