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IKMC 2018 - Grades 3-4 - Self-study Question 18

IKMC · IKMC 2018 - Grades 3-4 - Self-study

Question 18

Four balls weigh 10, 20, 30 and 40, one weight each. Which ball weighs 30?

Question illustration
  1. A
  2. B
  3. C
  4. D
  5. cannot be determined