Question
Hazel bought 7 kg of beef and 2 kg of mutton for $105. If she brought 2 kg of beef and 7 kg of mutton, she would have to pay $30 less. How much did 1 kg of beef cost?
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Hazel bought 7 kg of beef and 2 kg of mutton for $105. If she brought 2 kg of beef and 7 kg of mutton, she would have to pay $30 less. How much did 1 kg of beef cost?