Question
Anna bought 7 kg of pork and 2 kg of mutton for $57. If she brought 2 kg of pork and 7 kg of mutton, she would have to pay $15 less. How much did 1 kg of mutton cost?
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Anna bought 7 kg of pork and 2 kg of mutton for $57. If she brought 2 kg of pork and 7 kg of mutton, she would have to pay $15 less. How much did 1 kg of mutton cost?