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IKMC 2016 - Grades 9-10 - Self-study Question 1

IKMC · IKMC 2016 - Grades 9-10 - Self-study

Question 1

Four numbers have mean 9. Three are 5,9,12. What is the fourth?
  1. 6
  2. 8
  3. 9
  4. 10
  5. 36