Question
Jane bought 7 kg of beef and 4 kg of pork for $135. If she brought 4 kg of beef and 7 kg of pork, she would have to pay $6 less. How much did 1 kg of beef cost?
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Jane bought 7 kg of beef and 4 kg of pork for $135. If she brought 4 kg of beef and 7 kg of pork, she would have to pay $6 less. How much did 1 kg of beef cost?