Direction: Each question has a main statement followed by four statements labelled A, B, C and D. Choose the ordered pair of statements where the first statement implies the second, and the two statements are logically consistent with the main statement.
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Either Ravana is a demon, or he is a hero.
A. Ravana is a hero.
B. Ravana is a demon.
C. Ravana is not a demon.
D. Ravana is not a hero.
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- CD only
- BA only
- CD and BA
- DB and CA
Correct Option: D
It is an example of either a or b type:
CD a → - b that is logically incorrect.
BA a → b that is also logically incorrect.
DB b → a that is also logically correct
CA - a → b that is also logically correct
