Carly wants to buy 10 litres of paint and only wants to go to one shop to buy it. Home Stores sells 2 l tins of paint for £4.75 each. Paint Supplies sells 1 l tins of paint for £3.90 each and it's 3 for 2. The DIY shop sells 2.5 l tins of paint for £7.50 each, and it's buy 3 get 1 free. What is the cost of getting 10 litres from each shop? Write down where Carly should buy her paint from in the comment box.