Statements: All students are boys. No boy is dull. Conclusions: I. There are no girls in the class. II. No student is dull.
Correct Answer: Only conclusion II follows
Explanation:
First Premise is Universal Affirmative and the second Premise is Universal Negative (E-type).
All students are boys. ↔ No boy is dull.
A + E ⇒ E–type of Conclusion "No student is dull"
This is conclusion II.