A cost-effective solution to the problem of airport congestion is to provide high-speed ground transportation between major cities lying 200 to 500 miles apart. The successful implementation of this plan would cost far less than expanding existing airports and would also reduce the number of airplanes clogging both airports and airways.
Which of the following, if true, could proponents of the plan above most appropriately cite as a piece of evidence for the soundness of their plan?

Question

Examsnet · Accepted Answer

Correct Answer is :  One-half of all departing flights in the nation’s busiest airport head for a destination in a major city 225 miles away.

GMAT Verbal Reasoning Practice Test 4