• Reasoning Ability - Syllogisms
Question

Statements :  Some trees are plants.
                       All bushes are plants.

Conclusions : I.    At least some trees are bushes.
                        II.   Some trees are definitely not bushes. 

  • A) if only conclusion I follows.
  • B) if only conclusion II follows.
  • C) if either conclusion I or conclusion II follows.
  • D) if neither conclusion I nor conclusion II follows.
  • E) if both conclusion I and conclusion II follow.
Solution
C

All bushes are plants + Some plants are trees = A + I = No conclusion.

Hence, neither conclusion I nor conclusion II follows.

However, since they make a complementary pair I-O,

therefore, either conclusion I or conclusion II follows.

Hence, option C is correct.
C

All bushes are plants + Some plants are trees = A + I = No conclusion.

Hence, neither conclusion I nor conclusion II follows.

However, since they make a complementary pair I-O,

therefore, either conclusion I or conclusion II follows.

Hence, option C is correct.
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