Question

You need to order 4 plastic cups for each of the 800 runners. plastic cups are sold in 2 different pack sizes and you must choose one type of pack only. a pack of 500 cost £12.50 and a pack of 800 costs £23.20. what is the least amount of money it will cost to provide 4 cups to each runner?

Answer 1

So you can buy $4 pack of $800 each, or buy $7 packs of $500 each.