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Australian AMC 2012 - Middle Primary Question 28

AMC AUSTRALIA · Australian AMC 2012 - Middle Primary

Question 28

A rectangular tile has a perimeter of 24 cm. When Sally places four of these tiles in a row to create a larger rectangle, she finds the perimeter is double the perimeter of a single tile. What would be the perimeter of the rectangle formed by adding another 46 tiles to make a row of 50 tiles?