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IMAS 2016 — Junior — Round 1 Question 16

IMAS · IMAS 2016 — Junior — Round 1

Question 16

From a $5\times5$ square piece of paper, two $2\times4$ rectangles are cut off along the grid lines. In how many different ways can this be done?
  1. $6$
  2. $9$
  3. $12$
  4. $18$
  5. $24$