(b) Chris needs to buy oil for his lawnmower.
In a shop there is a 2 litre container of Oil A for sale at €15.50.
Also in the shop, a 0.5 litre container of Oil B sells at €4.49. This oil is on "Special Offer" so
that, if he buys two 0.5 litre containers of oil, he will get a 15% discount.
What is the price per litre of the oil in each case?
Oil A:
Oil B: