Question

You need 150g of flour for 12 cakes, how much flour do you need for 30 cakes?

Answer 1

150g. 12 cakes
X. 30

X=150x30/20=225

Answer 2

if you need 150g of flour for 12 cakes, that means you need 12.5 g of flour per cake. So if you multiply that by 30 it gives you
375g of flour