Statement: 1. Some books are useful. 2. All useful things are expensive. Conclusions: I. Some books are expensive. II. All books are expensive.

Question

Accepted Answer

Only I follows. Since some books are useful and all useful things are expensive, those some books are definitely expensive. But we cannot say all books are expensive because only some books are linked to useful things.

Statement: 1. Some books are useful. 2. All useful things are expensive. Conclusions: I. Some books are expensive. II. All books are expensive.

Solution

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