Question

Consider following statements.
(i) If a person is social, then he is happy.
(ii) If a person is not social, then he is not happy.
(iii) If a person is unhappy, then he is not social.
(iv) If a person is happy, then he is social.

Identify the pairs of statements having same meaning.

Answer 1

The pair of statements that have the same meaning are

a) (i) and (iv)

b) (ii) and (iii)