Question
In a book shop, a box of pens costs four times as much as a manual. Mrs Chye spent 14 of her money to buy 7 boxes of pens. She then spent 37 of her remaining money to buy some manuals and had $91.20 left. How much does each manual cost?
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In a book shop, a box of pens costs four times as much as a manual. Mrs Chye spent 14 of her money to buy 7 boxes of pens. She then spent 37 of her remaining money to buy some manuals and had $91.20 left. How much does each manual cost?