Question
In a store, a box of markers costs thrice as much as a guidebook. Mrs Yeo spent 15 of her money to buy 7 boxes of markers. She then spent 57 of her remaining money to buy some guidebooks and had $64.80 left. How much does each guidebook cost?
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In a store, a box of markers costs thrice as much as a guidebook. Mrs Yeo spent 15 of her money to buy 7 boxes of markers. She then spent 57 of her remaining money to buy some guidebooks and had $64.80 left. How much does each guidebook cost?