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IKMC 2005 - Grades 9-10 - Self-study Question 24

IKMC · IKMC 2005 - Grades 9-10 - Self-study

Question 24

How many positive integers n satisfy $2000<\sqrt{n(n+1)}<2005$?
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5