A science teacher wants to prepare a resource pack for each of the 120 pupils in year 10. She will need to photocopy 40 pages pe
r pupil and give each pupil a folder to keep the pages in. Photocopying costs 2p per page and folders are 70p each. There is a similar resource available online for a one off cost of £175. How much would she save by choosing the online option?
35 Cars because, if you times 3 by 5 it equals 15 which means that 1 hour equals 5 cars. So you times 7 by 5 and that will give you the amount of cars that were washed.