The contrapositive of the statement ` "if 2^(2) =5` then I get first class is

Options

A. if I do not get a first class, then ` 2^(2) =5`
B. if I do not get a first class , then ` 2^(2) ne 5`
C. If I get first class, then `2^(2) =5`
D. none of these

Answer

B

Explanation

Let p and q be two propositions by
` p : 2^(2) =5`, q : I get first class
The given statement is `p to q`
The contrapositive of this statement is ` ~ q to ~ p`
i.e. If I do not get first class, then `2^(2) ne 5`