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VTMO 2026 - Grade 6 - Semifinal - SET 4 - Self-study Question 23

VTMO · VTMO 2026 - Grade 6 - Semifinal - SET 4 - Self-study

Question 23

Nine cards on a table are labelled $1,2,3,4,5,6,7,8,9$. Hanh removes one card so that the sum of the remaining numbers is divisible by 8. Phuc then removes two more cards so that the sum still remaining is divisible by 8. What is the largest possible sum of the numbers on all cards removed by Hanh and Phuc?

Question illustration
  1. 13
  2. 15
  3. 18
  4. 21
  5. 24