GMAT Exam Dumps : Graduate Management Admission Test (2022)

Of the 45 households in a certain neighborhood, 28 subscribe to Newspaper Q, 17 subscribe to Newspaper R, 12 subscribe to Newspaper S, 7 subscribe to both Q and R, 8 subscribe to both Q and 5, and 9 subscribe to both R and 5. The number of households who subscribe to all three newspapers is equal to the number of households who subscribe to none of the three newspapers. If 39 of the households subscribe to at least one of the three newspapers, how many households subscribe to only one of the newspapers?

In 90 percent of the commercial airline accidents last year, one or another of a group consisting of only 18 percent of the world's commercial airlines was involved. Since the other 82 percent of airlines were generally flying the same types of airplanes as the accident-prone airlines, significant differences in safety procedures must have been responsible for these differences In safety records.

Which of the following, if true about the world's commercial airlines last year, most seriously weakens the argument above?

Pete made a trip to the beach, of which 80 kilometers were on highway X. What was Pete’s average speed for the trip?

(1)

Pete’s average speed for the part of the trip on highway X was 80 kilometers per hour.

(2)

Pete’s average speed for the part of the trip not on highway X was 96 kilometers per hour.