Prashnikaप्रश्निका
Code
About
‹ Back to the paper
Computer Science20251 markAssertion-reasonBoolean AlgebraTool: Boolean algebra solver

Study the Assertion and Reason and choose the correct option.

The contrapositive of p' ⇒ q is q' ⇒ p.

Assertion: The contrapositive of $p' \Rightarrow q$ is $q' \Rightarrow p$.

Reason: Contrapositive is the conditional statement, obtained after interchanging antecedent and consequent.

  • (a)Both A and R are true, and R is the correct explanation of A.
  • (b)Both A and R are true, but R is not the correct explanation of A.
  • (c)A is true, but R is false.
  • (d)A is false, but R is true.

Answer

Answer

Correct option: c

Answer: (c) A is true, but R is false. For p' => q, the contrapositive negates both sides and swaps them: ~q => ~(p') = q' => p, exactly as the assertion states, so A is true. R is false because it describes only interchanging the antecedent and consequent without negating them - that is the definition of the converse, not the contrapositive.