Pianni Beverages produce two ready-mixed cocktail drinks; the Zombie and the Skyjack. Each is a mixture of vodka, vermouth anu ginger. It takes 3 litres of vodka, 6 litres of vermouth and 1 litre of ginger to make 10 litres of Zombie, and 5 litres of vodka, 3 litres of vermouth and 2 litres of ginger to make 10 litres of Skyjack. The company makes £15 profit per 10 litres of Zombie and £20 profit per 10 litres of Skvjack. The maximum available supplies per day are: 1500 litres of vodka, 1500 litres of ver- mouth and 400 litres of ginger. How much of each cocktail should be made to maximize profit per day, and what is the maximum profit per day it can make?

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