Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronald’s statement to mean that

Question

Examsnet · Accepted Answer

Correct Answer is :  if interest rates fall, housing prices must rise

GMAT Verbal Reasoning Practice Test 2