Syllogism

SSC CGL · Reasoning · 19 practice questions with answers and explanations: 4 Easy, 7 Medium, 8 Hard.

Sample questions

Sample Easy question 1

Statements: All lions are animals. Some animals are wild. Conclusion: Some lions are wild. Is this conclusion valid based purely on the statements given?

  1. Valid
  2. Invalid
  3. Cannot be determined
  4. None of these
Show answer

Answer: B. The 'wild' animals mentioned aren't guaranteed to include lions specifically, so the conclusion doesn't strictly follow from the statements.

Sample Medium question 2

Statements: No fish are mammals. All whales are mammals. Conclusion: No whales are fish. Is this conclusion valid?

  1. Valid
  2. Invalid
  3. Cannot be determined
  4. None of these
Show answer

Answer: A. Since whales are mammals and no mammals are fish, no whales can be fish.

Sample Hard question 3

Statements: Some teachers are writers. All writers are readers. Conclusion I: Some teachers are readers. Conclusion II: All readers are teachers. Which conclusion(s) follow?

  1. Only I
  2. Only II
  3. Both I and II
  4. Neither
Show answer

Answer: A. Conclusion I follows directly from the chain; Conclusion II reverses the logic and does not follow.

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