1. Susan opened the box. “A frilly shirt and a fancy tie,” she exclaimed. “How much were they?” “Not too much,” replied Bill. “But if you want, you can work out the prices yourself. If the shirt had cost £2.25 more it would have been two-thirds of the total cost, but if the tie had cost me £2.25 less it would have been just a quarter of the total.” Well?

Shirt £5.60, tie £3.25

Shirt £7.05, tie £5.80

Shirt £6.75, tie £4.50