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Given below are two premises with four conclusions drawn from them (taking singly or together). Which of the following conclusions could be validly drawn from the premises? Premises:  i) All cats are animals. ii) Birds are not cats. Conclusions: a) Birds are not animals. b) Cats are not Birds. c) All animals are cats. d) Some animals are cats.

Given below are two premises with four conclusions drawn from them (taking singly or together). Which of the following conclusions could be validly drawn from the premises? Premises:  i) All cats are animals. ii) Birds are not cats. Conclusions: a) Birds are not animals. b) Cats are not Birds. c) All animals are cats. d) Some animals are cats. Correct Answer b and d

Venn diagram is as follows:

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Conclusions:

a) Birds are not animals. → False (It is possible but not definite) 

b) Cats are not Birds. → True (Given that birds are not cats means cats are also not bird)

c) All animals are cats. → False  (It is possible but not definite) 

d) Some animals are cats. → True

Hence, "only b and d" follows. 

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