Ratio question

Question

To make a ham sandwich I need I bread roll and two slices of ham.

Pack of 20 bread rolls are £2.87

Pack of 30 ham slices are £6.32

I am going to have to buy enough packs to have exactly twice as many ham slices than bread rolls 

I need to make more than 90 hand sandwiches 

whats the least amount I can spend

Answer 1

1) You need at least 5 packs of buns (5 * 20 = 100, for the 90 ham sandwich minimum)

2) Then you need at least 200 ham slices or 7 packages (7 * 30 = 210)

 

No you determine the cost.