Question
Paul buys a skirt, a sweater and a jacket. The average cost of these items is $83. The cost of the jacket is four times the total cost of the skirt and the sweater. If the skirt costs $30, find the difference in cost between the sweater and the jacket.
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Paul buys a skirt, a sweater and a jacket. The average cost of these items is $83. The cost of the jacket is four times the total cost of the skirt and the sweater. If the skirt costs $30, find the difference in cost between the sweater and the jacket.