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IKMC 2018 - Grades 11-12 - Self-study Question 6

IKMC · IKMC 2018 - Grades 11-12 - Self-study

Question 6

The following two statements are true: Some aliens are green and all others are purple. Green aliens live on Mars only. Which one of the following logical conclusions can be made?
  1. All aliens live on Mars.
  2. Only green aliens live on Mars.
  3. Some purple aliens live on Venus.
  4. All purple aliens live on Venus.
  5. No green aliens live on Venus.