Question
In a book shop, a box of files costs thrice as much as a guidebook. Mrs Tay spent 14 of her money to buy 5 boxes of files. She then spent 25 of her remaining money to buy some guidebooks and had $105.30 left. How much does each guidebook cost?
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In a book shop, a box of files costs thrice as much as a guidebook. Mrs Tay spent 14 of her money to buy 5 boxes of files. She then spent 25 of her remaining money to buy some guidebooks and had $105.30 left. How much does each guidebook cost?