Question
Tiffany bought 13 kg of mutton and 6 kg of beef for $129. If she brought 6 kg of mutton and 13 kg of beef, she would have to pay $49 less. How much did 1 kg of beef cost?
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Tiffany bought 13 kg of mutton and 6 kg of beef for $129. If she brought 6 kg of mutton and 13 kg of beef, she would have to pay $49 less. How much did 1 kg of beef cost?