Question
In a book shop, a box of staplers costs four times as much as a colouring book. Mrs Leow spent 15 of her money to buy 7 boxes of staplers. She then spent 57 of her remaining money to buy some colouring books and had $86.40 left. How much does each colouring book cost?
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In a book shop, a box of staplers costs four times as much as a colouring book. Mrs Leow spent 15 of her money to buy 7 boxes of staplers. She then spent 57 of her remaining money to buy some colouring books and had $86.40 left. How much does each colouring book cost?