Question
In a book shop, a box of pencils costs thrice as much as a manual. Mrs Leng spent 13 of her money to buy 6 boxes of pencils. She then spent 79 of her remaining money to buy some manuals and had $30.40 left. How much does each manual cost?
4 m

Click button first when a symbol is required. X

In a book shop, a box of pencils costs thrice as much as a manual. Mrs Leng spent 13 of her money to buy 6 boxes of pencils. She then spent 79 of her remaining money to buy some manuals and had $30.40 left. How much does each manual cost?