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Q1. (a) List prices of items A, B and C are £18, £12 and £4 respectively. Item A is available at a discount of 20%, item B at a discount of 15% and item C at a discount of 30%.

Determine EACH of the following:

(i) the purchase price of EACH item; (3)

(ii) the overall percentage discount obtained by buying 5 of item A, 8 of item B and 20 of item C. (5)

(b) The masses of two similarly shaped objects are 24 kg and 81 kg. The surface area of the larger object is 540 cm².

Calculate the surface area of the smaller object. (8)