The Manager of Drysdale’s Building Company was very happy to receive
your letter and immediately decided to help. He sent you a quotation for two
dierent-sized tiles:
Tile A is 18cm x 18cm and costs $400 per tile.
Tile B is 10cmx 10cm and costs $150 each.
Task: You want to choose the most economical tile for your classroom.
Which tile will you choose for the room Tile A or Tile B? Give reasons for
your answer using words and numbers.
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MATHEMATICS PERFORMANCE TASKS 53 Christie Wainwright