Contrapositive Exercise

Now try a question in testlike format.

IF/THEN TIP

Whenever = If

EXAMPLE

If Louis eats another cheeseburger, then he will get sick.

Contrapositive:

13.

If aliens take over Earth, I will not have to do my homework.

Contrapositive:

14.

Benjarta runs away whenever she is assigned work.

Contrapositive:

15.

If Carlos follows the safety precautions, then his experiment will go according to plan.

According to the statement above, which of the following must be true?

9.

A. If Carlos’s experiment goes according to plan, then he followed the safety precautions.

B. If Carlos does not follow the safety precautions, his experiment is potentially dangerous.

C. If Carlos’s experiment does not go according to plan, then he did not follow the safety precautions.

D. Carlos’s experiment will only go according to plan if he follows the safety precautions.

E. If Carlos does not follow the safety precautions, then his experiment will not go according to plan.