Skip to content / Đến nội dung
ThichHocToan.com

Australian AMC 2012 - Upper Primary Question 22

AMC AUSTRALIA · Australian AMC 2012 - Upper Primary

Question 22

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?
  1. 306
  2. 400
  3. 416
  4. 480
  5. 612