Bob is having a party and wants to order some cakes. There will be 57 guests and he wants to make sure everyone gets a slice of cake. He wants to pay as little as possible for the cakes and for them to be the same size. How much will he have to pay for the cakes?
Bob should by the 25cm cake for 18.75 each. He will need to buy 3 of these cakes in order to feed 57 guests. The total cost would be 56.25. If he were to buy the 20cm cake, he would need to purchase 5 cakes for a total of 67.50.
