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Some books are magazines. All magazines are journals.Conclusions:Some books are journals.No magazine is a book.A. Only conclusion 1 followsB. Only conclusion 2 followsC. Both 1 and 2 followD. Neither 1 nor 2 follow

Question

Some books are magazines. All magazines are journals.Conclusions:Some books are journals.No magazine is a book.A. Only conclusion 1 followsB. Only conclusion 2 followsC. Both 1 and 2 followD. Neither 1 nor 2 follow

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Solution

A. Only conclusion 1 follows

Here's the step-by-step reasoning:

  1. The first statement says "Some books are magazines." This means there is at least one book that is also a magazine.

  2. The second statement says "All magazines are journals." This means every magazine is also a journal.

  3. From these two statements, we can infer that since some books are magazines, and all magazines are journals, then some books must also be journals. So, conclusion 1 "Some books are journals" follows.

  4. However, conclusion 2 "No magazine is a book" does not follow. The first statement already told us that some books are magazines, which means there are some magazines that are books. So, conclusion 2 is incorrect.

Therefore, the answer is A. Only conclusion 1 follows.

This problem has been solved

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