" />
If the area of a square increases four times, then its side is not doubled
If the side of a square is not doubled, then its area does not increase four times
If the area of a square does not increase four times, then its side is not doubled
If the area of a square increases four times, then its side is doubled
The correct option is C If the area of a square does not increase four times, then its side is not doubled. Contrapositive of p→q is given by ¬q→¬p. So, (3) is the right option.