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SASMO 2020 Grade 7 Question 9

SASMO · SASMO 2020 Grade 7

Question 9

How many triples of positive integers $(x,y,z)$ satisfy $x+y+z=14$? All permutations of a triple count as the same triple.
  1. 12
  2. 11
  3. 13
  4. 16
  5. None of the above