Chocolate cake for 6 people needs 150g of flour, 150g of sugar, 120g of cocoa and 3 eggs. Emma has 8 eggs, 450g flour, 380g sugar, 300g of cocoa. What's the maximum number of people that she can make for a cake?

First you would need to dive what you have of each ingredient by how much you need for 6 people.

Flour: 450 : 150 = 3

Sugar: 380 : 150 = 2

Cocoa: 300 : 120 = 2.5

Eggs: 8 : 3 = 2.7

then you look at the total batches each could make and average it to 2 batches. then multiply 6 by 2.

6*2 = 12

so all together, the maximum amount of people you can make for is 12.