Syllogism

Ladakh Prison Department · Reasoning · 19 practice questions with answers and explanations: 10 Easy, 9 Medium, 0 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 Easy question 2

Statements: All squares are polygons. All polygons are shapes. Conclusion I: All squares are shapes. Conclusion II: All shapes are squares. Which follows?

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

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

Sample Easy question 3

Statements: All squares are rectangles. Some rectangles are circles. Conclusion: Some squares are circles.

  1. Follows
  2. Does not follow
  3. Cannot be determined
  4. Both follow
Show answer

Answer: B. The rectangles that are circles aren't guaranteed to be the same ones that are squares, so the conclusion does not follow.

Sample Medium question 4

Statements: No mangoes are vegetables. Some fruits are mangoes. Conclusion: Some fruits are not vegetables. Is this valid?

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

Answer: A. The fruits that are mangoes cannot be vegetables, so some fruits are indeed not vegetables.

Sample Medium question 5

Statements: All cats are animals. Some animals are wild. Conclusion: Some cats are wild.

  1. Follows
  2. Does not follow
  3. Cannot be determined
  4. Both follow
Show answer

Answer: B. The 'wild animals' may not overlap with the 'cats' group, so the conclusion does not necessarily follow.

Sample Medium question 6

Statements: All roses are flowers. All flowers are plants. Conclusion: All roses are plants.

  1. Follows
  2. Does not follow
  3. Cannot be determined
  4. Both follow
Show answer

Answer: A. This is a valid syllogism chain, so the conclusion follows.

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