Question
In a bookstore, a box of pencils costs thrice as much as a manual. Mrs Choo spent 15 of her money to buy 3 boxes of pencils. She then spent 59 of her remaining money to buy some manuals and had $22.40 left. How much does each manual cost?
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In a bookstore, a box of pencils costs thrice as much as a manual. Mrs Choo spent 15 of her money to buy 3 boxes of pencils. She then spent 59 of her remaining money to buy some manuals and had $22.40 left. How much does each manual cost?