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An iced cake costs 10p more than a plain cake. Sarah bought two of each cake. They cost £1 altogether. What is the cost of an iced cake?
4 CAKES TOTAL £1 THEREFORE 2 CAKES COST 50p. ONE OF THE CAKES COST 10p MORE THAN THE OTHER ( 50p - 10p = 40p / 2 = 20p ) ONE CAKE COSTS 20p AND THE OTHER COSTS 30p ( 20p * 30p * 2 = £1 )
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