Some of the novels on the list are mysteries. All the mysteries on the list were written before 1950.
Which one of the following must be true?
Answer and explanation
Correct answer: B. Some novels on the list were written before 1950
- Step 1: Some novels are mysteries. Step 2. All mysteries were written before 1950, so those novels were. Answer: some novels were written before 1950. Why not the others: these go beyond the statements.
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