Jodie works for a bookshop. She is paid £6.50 an hour plus 5% of the cost of each book she sells. On Saturday, Jodie worked for 3 hours and sold £220 worth of books. How much money did Jodie earn?

We can break down this question in to two parts. Firstly we should work out how much Jodie earns for the hours that she worked. Since she worked 3 hours on Saturday to work out how much she was paid we have to multiply it by the hourly rate which is, £6.50. So, 3 x 6.50 = £19.50Secondly, we should work out how much she is paid in addition to this for the books she sells. To do this we have to work out 5% of £220. To work out 10%, we divide 220 by 10 which is £22. So, 5% is £22 divided by 2 which is £11. So to work out the total we do, £19.50 + £11 = £30.50