mdcat logical reasoning MCQ #898

Which of these statements is logically equivalent to 'If P then Q'? A) If not P then not Q B) If not Q then not P C) If Q then P D) P if and only if Q

mdcat logical reasoning MCQ #898

Question 1
Q1. Which of these statements is logically equivalent to 'If P then Q'? A) If not P then not Q B) If not Q then not P C) If Q then P D) P if and only if Q
- A) A
- B) B
- C) C
- D) D
Answer: B
Explanation: B is contrapositive. A is inverse fallacy which differs in truth value.