Civil Service Exam Reviewer · Logical Reasoning · easy

Assume the following statements are true: 1. All tarsiers are endemic species. 2. All endemic species are primates. Which conclusion MUST be true?

  1. All tarsiers are primates.
  2. All primates are tarsiers.
  3. Some primates are not tarsiers.
  4. None of these conclusions necessarily follows.

Answer

A. All tarsiers are primates.

Solution

All tarsiers are endemic species, and all endemic species are primates. So all tarsiers are primates. The other choices may or may not be true, so they do not necessarily follow.

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