Level 2
Mark went shopping with some money. The amount of money he brought along was just enough to buy 6 similar files. However, he spent $4.20 on a scarf and $6.85 on a shirt. He then had $22.55 left. What was the price of each file?
4 m
Level 3
Mr. Choy bought 5 kg of flour for $12. He sold the flour for $28.
  1. How much did he sell each kilogram of flour for?
  2. How much money did he make from each kilogram of flour?
4 m