Some birds are mammals. No mammals are reptiles.Conclusions:Some birds are reptiles.No birds are reptiles.A. Only conclusion 1 followsB. Only conclusion 2 followsC. Both 1 and 2 followD. Neither 1 nor 2 follows
Question
Some birds are mammals. No mammals are reptiles.Conclusions:Some birds are reptiles.No birds are reptiles.A. Only conclusion 1 followsB. Only conclusion 2 followsC. Both 1 and 2 followD. Neither 1 nor 2 follows
Solution
The correct answer is B. Only conclusion 2 follows.
Here's the step by step reasoning:
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The statement says "Some birds are mammals." This means there is a group of birds that are also classified as mammals.
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The next statement says "No mammals are reptiles." This means there is no overlap between mammals (which includes some birds from the first statement) and reptiles.
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Therefore, the conclusion "Some birds are reptiles" cannot be true, because the birds that are mammals cannot be reptiles.
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However, the conclusion "No birds are reptiles" can be true. While it's possible that there are birds that are reptiles, based on the given statements, we can conclude that the birds that are mammals are not reptiles.
So, only conclusion 2 follows the given statements.
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