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AMO 2022 – Primary 6 (Grade 6) Question 9

AMO · AMO 2022 – Primary 6 (Grade 6)

Question 9

Whole numbers $x,y$ satisfy $3x+5y=31$ and $6x-2y=2$. Find $xy$.

Question illustration
  1. 8
  2. 10
  3. 12
  4. 15
  5. 18