Question

Keely makes meringues by mixing egg whites with sugar.

The ratio of egg whites to sugar by weight is 3:5
Keely has 8000g of sugar
She wants to use all this sugar to make meringues.
Keely has 9 boxes of eggs.
Each box contains 15 eggs
The weight of the egg white from one egg is 40g.
Has Keely got enough eggs to make meringues using
8000g of sugar?
(5)

Answer 1

Yes, she will have enough eggs.

Explanation:

It's an easy question if we carefully think about it.

Firstly we find the total number of eggs:

- 9 boxes x 15 eggs = 135 eggs

Secondly, the weight of the useful egg whites:

- 135 eggs x 40 grams = 5400 grams of egg whites

Thirdly we divide the egg whites weight by the sugar weight

- 5400/8000 = 0.675 which is larger than the minimum ratio, 3/5 = 0.6.

This means that Keely will have enough eggs to use the whole of the sugar for meringues.