dominique11

If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r? (1) 2 is not a factor of n. (2) 3 is not a factor of n. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient.

A box contains exactly 24 balls, of which 12 are red and 12 are blue. If two balls are to be picked from this box at random and without replacement, what is the probability that both balls will be red? A. 11/46 B.1/4 C. 5/12 D.17/40 E.19/40

A school administrator will assign each student in a group of n students to one of m classrooms. If 3 (1) It is possible to assign each of 3n students to one of m classrooms so that each classroom has the same number of students assigned to it. (2) It is possible to assign each of 13n students to one of m classrooms so that each classroom has the same number of students assigned to it. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient.

The sense of delayed gratification, of working now for later pleasure, has helped shape the economic behavior of our society. However, that sense is no longer nurtured as consistently in our children as it once was. For example, it used to take a bit of patience to put together the toys that children got in cereal boxes; now the toys come from the boxes whole. Which of the following is an assumption of the passage above? A. The toys in cereal boxes have changed partly because the economic conditions of our society have improved. B. The influence of promotion gimmicks on the economic behavior of our society has increased over the years. C. The toys that used to come in cereal boxes were put together by the same children who played with them. D. Part of the pleasure of any toy lie in putting the toy together before playing with it. E. Today's children do not expect a single toy to provide pleasure for a long period of time.

The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing the Aramaic script with it, from which was derived both northern and southern India alphabets. A. the Aramaic script with it, from which was derived both northern and B. the Aramaic script with it, and from which deriving both the northern and the C. with it the Aramaic script, from which derive both the northern and the D. with it the Aramaic script, from which derives both northern and E. with it the Aramaic script, and deriving from it both the northern and

IN E why a specially is wrong

According to a recent survey of municipal services, the city’s streets could be cleaner, its fire code be better enforced, and its crime rate reduced if the current administration improved its management practices. A. be better enforced, and its crime rate reduced B. better enforced, and its crime rate reduced C. could be better enforced, and it could reduce its crime rate D. better enforced, and its crime rate could reduce E. could be better enforced, and its crime rate reduce

In B, twice as much..as, it's correct.

Why not B ?

The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of the flow of heat from the inner though the outer planet and of the formation and periodic reversal in direction of Earth's magnetic field. A. core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of the flow of heat from the inner though the outer planet and of the formation and periodic reversal in direction of Earth's magnetic field B. core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of how heat from the inner core flows though the outer planet, and the formation and periodic reversal in direction of Earth's magnetic field C. core rotates independently of and more quickly than Earth's outer layers are responsible for advancing studies of how heat from the inner core flows though the outer planet, and how Earth's magnetic field forms and the periodic reversal of its direction D. core, rotating independently and more quickly than Earth's outer layers, are responsible for advancing studies of the flow of heat from the inner though the outer planet, and the formation and periodic reversal in direction of Earth's magnetic field E. core, rotating independently of and more quickly than Earth's outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth's magnetic field forms and the periodic reversal of its direction

Providing initial evidence that airport are a larger source of pollution than they were once believed to be, environmentalists in Chicago report that the total amount of pollutant emitted annually by vehicles at O’Hare International Airport is twice as much as that which is being emitted annually by all motor vehicles in the Chicago metropolitan area. A. as much as that which is being emitted annually by all B. as much annually as is emitted by the C. as much compared to what is annually emitted by all D. that emitted annually by all E. that emitted annually compared to the

More than fifty years after the Second World War, a number of African American soldiers were awarded ― some of them posthumously ― with the Congressional Medal of Honor, which was the nation’s highest military award, and which was long overdue in recognition of their outstanding bravery. A. with the Congressional Medal of Honor, which was the nation’s highest military award, and which was long overdue in B. with the Congressional Medal of Honor, the nation’s highest military award for long-overdue C. the Congressional Medal of Honor, which was the nation’s highest military award, long-overdue in D. the Congressional Medal of Honor, the nation’s highest military award for long-overdue E. the Congressional Medal of Honor, the nation’s highest military award, in long-overdue

C is OA

Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience. Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is Marconi conceived of the radio as a substitute for the telephone, a tool for private conversation, but which is Marconi conceived of the radio as a tool for private conversation that could substitute for the telephone; instead, it has become Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is,

While digging in the Egyptian desert,huge fossil bones have been found by paleontologists,which appear to have been the second most massive dinosaur that ever lived. a).. b) huge fossil bones have been found by paleontologist,which appear to be from c) it appears that paleontologists have found huge fossil bones that are from d) paleontologists have found huge fossil bones from what appears to be e) paleontologists have found huge fossil bones,which are from what appear to be SPOILER: D why is E wrong

8Q21 The single-family house constructed by the Yana, a Native American people who lived in what is now northern california, was conical in shape, its framework of poles overlaid with slabs of bark, either cedar or pine, and banked with dirt to a height of three to four feet. a. banked with dirt to a height of b. banked with dirt as high as that of c. banked them with dirt to a height of d. was banked with dirt as high as e. was banked with dirt as high as that of Why not D? OA is A

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks. On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

8Q41 In 1713, Alexander Pope began his translation of the Iliad, a work that, taking him seven years until completion, and that literary critic Samuel Johnson, Pope’s contemporary, pronounced the greatest translation in any language. A. his translation of the Iliad, a work that, taking him seven years until completion,and that literary critic Samuel Johnson, Pope’s contemporary, pronounced B. his translation of the Iliad, a work that took him seven years to complete and that literary critic Samuel Johnson, Pope’s contemporary, pronounced C. his translation of the Iliad, a work that had taken seven years to complete and that literary critic Samuel Johnson, Pope’s contemporary, pronounced it as D. translating the Iliad, a work that took seven years until completion and that literary critic Samuel Johnson, Pope’s contemporary, pronounced it as E. translating the Iliad, a work that had taken seven years to complete and literary critic Samuel Johnson, Pope’s contemporary, pronounced it What's wrong with E? SWPOILER: OA is B

In Hungary, as in much of Eastern Europe, an overwhelming proportion of women work, many of which are in middle management and light industry. A. as in much of Eastern Europe, an overwhelming proportion of women work, many of which are in B. as with much of Eastern Europe, an overwhelming proportion of women works, many in C. as in much of Eastern Europe, an overwhelming proportion of women work, many of them in D. like much of Eastern Europe, an overwhelming proportion of women works, and many are E. like much of Eastern Europe, an overwhelming proportion of women work, many are in

Although exposure to asbestos is the primary cause of mesothelioma, a slow-developing cancer, researchers believe that infection by the SV40 virus is a contributing factor, since in the United States 60% of tissue samples from mesotheliomas, but none from healthy tissue, contain SV40. SV40 is a monkey virus; however, in 1960 some polio vaccine was contaminated with the virus. Researchers hypothesize that this vaccine was the source of this v8qirus found in mesotheliomas decades later. Which of the following, if true, most strongly supports the researchers' hypothesis? a. SV40 is widely used as a research tool ini cancer laboratories. b. changes in the technique of manufacturing the vaccine now prevent contamination with SV40. c. recently discovered samples of the vaccine dating from 1960 still show traces of the virus. d. In a small percentage of cases of mesothelioma, there is no history of exposure to asbestos. e. In Finland, where the polio vaccine was never contaminated, samples from mesotheliomas do not contain SV40.

Over 75 percent of the energy produced in France derives from nuclear power, while in Germany it is just over 33 percent. A. while in Germany it is just over 33 percent B. compared to Germany, which uses just over 33 percent C. whereas nuclear power accounts for just over 33 percent of the energy produced in Germany D. whereas just over 33 percent of the energy comes from nuclear power in Germany E. compared with the energy from nuclear power in Germany, where it is just over 33 percent What is wrong in option D?Plz explain. OA is C

For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly there-quarters only a decade ago. A. which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago B. which amounts to a little less than half the population of the state, down from a decade ago, when it was nearly three-quarters C. and that amounts to a little less than half the population of the state, down from a decade ago, when they were nearly three-quarters D. amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago E. amounting to a little less than half the population of the state, down from what it was a decade ago by nearly three-quarters What's wrong with C

There are 5 cars to be displayed in 5 parking spaces with all the cars facing the same direction. Of the 5 cars, 3 are red, 1 is blue, and 1 is yellow. If the cars are identical except for color, how many different display arrangements of the 5 cars are possible? A. 20 B. 25 C. 40 D. 60 E. 125

OA is C

My explanation: B should be " at a cost of raising water bills..." Need expert to explain more