alleryStatements: (i) All students are hardworking. (ii) Rohan is not hardworking. Which conclusion is valid?
ARohan is not a student
BRohan is lazy
CCannot determine
DRohan is a student
Answer & Solution
Correct answer: A. Rohan is not a student
**Contrapositive:** if all students hardworking, then not-hardworking → not student.
Rohan is not hardworking → Rohan is not a student.
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