Question
In a store, a box of pens costs twice as much as a manual. Mrs Chew spent 15 of her money to buy 3 boxes of pens. She then spent 79 of her remaining money to buy some manuals and had $11.20 left. How much does each manual cost?
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In a store, a box of pens costs twice as much as a manual. Mrs Chew spent 15 of her money to buy 3 boxes of pens. She then spent 79 of her remaining money to buy some manuals and had $11.20 left. How much does each manual cost?