Question
In a stationery shop, a box of staplers costs twice as much as a manual. Mrs Lau spent 15 of her money to buy 7 boxes of staplers. She then spent 47 of her remaining money to buy some manuals and had $40.80 left. How much does each manual cost?
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In a stationery shop, a box of staplers costs twice as much as a manual. Mrs Lau spent 15 of her money to buy 7 boxes of staplers. She then spent 47 of her remaining money to buy some manuals and had $40.80 left. How much does each manual cost?