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VTMO 2026 - Grade 6 - Semifinal - SET 11 - Self-study Question 6

VTMO · VTMO 2026 - Grade 6 - Semifinal - SET 11 - Self-study

Question 6

Which pair has greatest common divisor 20?

Question illustration
  1. (30, 40)
  2. (40, 50)
  3. (40, 120)
  4. (20, 25)
  5. (20, 80)