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IKMC 2020 - Grades 11-12 - Set 2 - Self-study Question 10

IKMC · IKMC 2020 - Grades 11-12 - Set 2 - Self-study

Question 10

Which expression is not divisible by 3 for any integer $n$?
  1. $5n+1$
  2. $n^2$
  3. $n(n+1)$
  4. $6n-1$
  5. $n^3-2$