Question
In a book shop, a box of staplers costs thrice as much as a guidebook. Mrs Tay spent 16 of her money to buy 7 boxes of staplers. She then spent 47 of her remaining money to buy some guidebooks and had $148.50 left. How much does each guidebook cost?
4 m

Click button first when a symbol is required. X

In a book shop, a box of staplers costs thrice as much as a guidebook. Mrs Tay spent 16 of her money to buy 7 boxes of staplers. She then spent 47 of her remaining money to buy some guidebooks and had $148.50 left. How much does each guidebook cost?