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Four dog dealers purchase a bargefull of dogs. The first buys one airedale, three spaniels and seven puppies for £14. The second buys one Airedale, four spaniels and ten puppies for £17. The third buys ten airedales, fifteen spaniels and twenty-five puppies. The fourth buys one airedale, one spaniel and one puppy.

How much did the third and fourth dealers pay?

Answer: £95 and £8 respectively.

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