Question
In a stationery kiosk, a box of files costs four times as much as a colouring book. Mrs Quek spent 15 of her money to buy 4 boxes of files. She then spent 47 of her remaining money to buy some colouring books and had $38.40 left. How much does each colouring book cost?
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In a stationery kiosk, a box of files costs four times as much as a colouring book. Mrs Quek spent 15 of her money to buy 4 boxes of files. She then spent 47 of her remaining money to buy some colouring books and had $38.40 left. How much does each colouring book cost?