Premise 1: No synthetic fabrics are biodegradable. Premise 2: Some waterproof raincoats are synthetic fabrics. What conclusion follows?
Answer and explanation
Correct answer: C. Some waterproof raincoats are not biodegradable
- Step 1: S and B have empty intersection. Some W are S. Step 2. The W that are S cannot be B. Hence some W are not B. Answer: Some waterproof raincoats are not biodegradable. Why not the others: Claiming all or none contradicts the particular premise.
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