A study of a city’s water-use patterns shows that for every 8x percent increase in the price of water, usage drops by x percent. If the price for water is currently $1.05 per 1,000 cubic feet, by how much should the price per 1,000 cubic feet be raised in order to obtain a reduction in [...]

The Avary Company hired a consulting firm to advise it on how to improve retention of new employees. Avary implemented several of the consulting firm’s recommendations, and, as a result, only 5 percent of newly hired clerical staff left within twelve months of hiring, but fully 10 percent of newly hired professional staff left during [...]

If industrial pollution continues to deplete the ozone layer, the resulting increase in ultraviolet radiation will endanger human health, causing a rise in the incidence of skin cancer and eye disease, and perhaps even threatening global ecological systems. (A)  and perhaps even threatening (B)  and may even threaten (C)  and even a possible threat to [...]

The National Centers for Disease Control looked at death certificates from 1980 to 1992 and found a 58 percent increase in infectious disease deaths. Yet, the United States gets new drugs to market more slowly than any other major industrial nation. Total drug approval times have jumped from eight years in 1960 to more than [...]

Quasars are so distant that their light has taken billions of years to reach the Earth; consequently, we see them as they were during the formation of the universe. (A) we see them as they were during (B) we see them as they had been during (C) we see them as if during (D) they [...]

Until recently, it was thought that the Cherokee, a Native American tribe, were compelled to assimilate Euro-American culture during the 1820s. During that decade, it was supposed, White missionaries arrived and, together with their part-Cherokee intermediaries, imposed the benefits of “civilization” on Cherokee tribes while the United States government actively promoted acculturalization by encouraging the [...]

If a code word is defined to be a sequence of different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J, what is the ratio of the number of 5-letter code words to the number of 4-letter code words? A) 5 to 4 B) 3 to 2 [...]

Freedman’s survey showed that people living in small towns and rural areas consider themselves no happier than do people living in big cities. (A) no happier than do people living (B) not any happier than do people living (C) not any happier than do people who live (D) no happier than are people who are [...]

A man lends $3000 for 3 years. A part he lends at 6% and the rest at 5% per annum and obtained a simple interest of $160 in a year. How much is invested at 6% per annum ? A) $500 B) $800 C) $1000 D) $1500 E) $2000

The nation’s three military academies have seen a dramatic rise in applications, one fueled by a resurgence of patriotism, increasing tuition costs at private colleges, and improved recruiting by the academies. (A) one fueled by a resurgence of patriotism, increasing tuition costs at private colleges, and improved recruiting by the academies (B) one fueled by [...]

. Within 20 years it will probably be possible to iden- tify the genetic susceptibility an individual may have toward any particular disease. Eventually, effective strategies will be discovered to counteract each such susceptibility. Once these effective strategies are found, therefore, the people who follow them will never get sick. The argument above is based [...]

The Taft-Hartley Act, passed by the United States Congress in 1947, gave states the power to enact “right-to-work” legislation that prohibits union shop agreements. According to such an agreement, a labor union negotiates wages and working conditions for all workers in a business, and all workers are required to belong to the union. Since 1947, [...]

Some who favor putting governmental enterprises into private hands suggest that conservation objectives would in general be better served if private environmental groups were put in charge of operating and financing the national park system, which is now run by the government. Which of the following, assuming that it is a realistic possibility, argues most [...]

In the late nineteenth century, the need for women physicians in missionary hospitals in Canton, China, led to expanded opportunities for both Western women and Chinese women. The presence of Western women as medical missionaries in China was made possible by certain changes within the Western missionary movement. Beginning in the 1870s, increasingly large numbers [...]