Question
In a shop, a box of markers costs thrice as much as a manual. Mrs Song spent 15 of her money to buy 6 boxes of markers. She then spent 59 of her remaining money to buy some manuals and had $83.20 left. How much does each manual cost?
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In a shop, a box of markers costs thrice as much as a manual. Mrs Song spent 15 of her money to buy 6 boxes of markers. She then spent 59 of her remaining money to buy some manuals and had $83.20 left. How much does each manual cost?