Question

What is the contrapositive of the following statement?

“If there is rain, then the dog will not bark.”

Answers
If there is not rain, then the dog will not bark.

If there is not rain, then the dog will bark.

If the dog will not bark, then there is rain.

If the dog will bark, then there is not rain.

Answer 1

if the dogs bark, there is no rain.... last statement.


refer http://en.wikipedia.org/wiki/Contraposition for more info.

Answer 2

If the dog will bark, then there is not rain.


The contrapositive of P--> Q is ~ Q --> ~P