Question
In a store, a box of markers costs twice as much as a manual. Mrs Quek spent 15 of her money to buy 7 boxes of markers. She then spent 57 of her remaining money to buy some manuals and had $46.40 left. How much does each manual cost?
4 m

Click button first when a symbol is required. X

In a store, a box of markers costs twice as much as a manual. Mrs Quek spent 15 of her money to buy 7 boxes of markers. She then spent 57 of her remaining money to buy some manuals and had $46.40 left. How much does each manual cost?