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AMO 2025 Secondary 1 (Grade 7) Question 7

AMO · AMO 2025 Secondary 1 (Grade 7)

Question 7

Numbers $x,y,z$ satisfy $x+y-z=9$, $x-y+z=15$, and $x+y+z=25$. Find $xyz$.

Question illustration
  1. 450
  2. 480
  3. 800
  4. 960