Question

Andy told Natalie, “If a book is long, then it is fun to read.”

Which statement is the contrapositive of the above statement?

Answer 1

If the book is not fun to read, then it is not long.

If the book is fun to read, then it is long.

If the book is not long, then it is not fun to read.

If the book is long, then it is fun to read.

Answer 2

Conditional statements of the form
If P then Q
have for their contrapositive the statement

"if NOT Q then NOT P"

Answer 3

So "If the book is not fun to read, then it is not long"?

Answer 4

Yup, it's correct. :)