GMAT Exam Dumps : Graduate Management Admission Test (2022)

At a certain used-book store, the cost of each paperback book is x dollars and the cost of each hardcover book is y dollars. What is the cost of a hardcover book at the store?

(1)

At the store, the cost of 3 paperback books and 5 hardcover books is $12.25.

(2)

At the store, the cost of 9 paperback books and 15 hardcover books is $36.75.

As much as. experience influences human preferences and values, the loss of firsthand experience with nature is likely to contribute to a reduced valuation of biodiversity by humans in the future—a dismal prospect for the diversity of life.

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?