List of top Questions asked in GRE

Which of the following is an acceptable sequence of experiments, from first to
last?

Which of the following experiments can be done fourth and fifth, respectively, in
the sequence of experiments?

If P is done first and S is done second, then T can be done in

If O is the third painting auctioned and J is the fourth painting auctioned, which
of the following can be auctioned later in the order than G is auctioned?

If G is the second painting auctioned and if J is auctioned as late in the order as
possible, then O must be the painting auctioned

Authorities in California required drivers to use their headlights on a certain
road during the daytime as well as at night and found that annual accident rates
on the road fell 15 percent from the previous level. They concluded that applying
the daytime rule statewide would lead to a similar reduction in accidents. Which of the following, if true, most strengthens the authorities' argument?

Which of the following, if true, most logically completes the passage? Every fusion reaction releases neutrinos. To test a hypothesis about the frequency
of fusion reactions in the Sun, physicists calculated the number of neutrinos the
Sun would produce annually if the hypothesis were correct. From this they
estimated how many neutrinos should pass through a particular location on Earth.
The fact that far fewer neutrinos were counted than were predicted to pass
through the location would seem to prove that the hypothesis is wrong, except
that------.

An economist concluded that Kregg Company deliberately discriminated against
people with a history of union affiliation in hiring workers for its new plant. The
economist's evidence is that, of the 1,500 people hired to work at the new plant,
only 100 had ever belonged to a labor union, whereas in Kregg Company's older
plants, a much higher proportion of workers have a history of union affiliation. Which of the following is an assumption on which the economist's argument
depends?

Hastings’ contracture is a disorder of the connective tissue in one or both hands,
most commonly causing loss of mobility. A survey of thousands of medical-insurance
claims found that over 30 percent of people who had one hand operated on for
Hastings' contracture underwent surgery a second time for this disorder within
three years. Clearly, therefore, a single surgical treatment of Hastings' contracture
is often ineffective at providing long-term correction of the disorder. Which of the following, if true, most seriously weakens the argument?

Excavations at a Mayan site have uncovered jewelry workshops located some distance from the center of the site on roads radiating outward from the center. Since the nobility lived only in the area of the center, archaeologists conclude that these workshops made jewelry, not for the nobility, but for a middle class that must have been prosperous enough to afford it. The archaeologists' argument assumes which of the following about the artisans who worked in the workshops?

Over the last 40 years there has been a great increase not only in the number of
agricultural pesticides in use but also in the care and sophistication with which
they are used by farmers. Nevertheless, the proportion of agricultural crops lost
to certain pests worldwide has increased over the same period, even when the
pests concerned have not developed resistance to existing pesticides. Which of the following, if true, best explains how improvements in pesticide use
have been accompanied by greater losses to certain pests?

If K is the seventh painting auctioned, the latest in the order that J can be
auctioned is

If the fourth, fifth, and sixth paintings auctioned are O, M, and H, respectively,
which of the following must be true?

If O is the first painting auctioned and G is the fifth painting auctioned, then J
must be either the

If M is auctioned as early in the order as possible, which of the following must
be true?

If the total number of commuters to County W is twice the number to County Z, and if the average number of vehicles that transport commuters daily to County W is 30,000, what is the approximate average number of vehicles that transport commuters daily to County Z?

If the average (arithmetic mean) of \( k \) and \( 7k \) is 60, then \( k = \)

In a crate of fruit that contained strawberries, blueberries, and raspberries, the ratio of the number of pints of strawberries to the number of pints of blueberries to the number of pints of raspberries was 6 to 4 to 5, respectively. If the crate contained a total of 45 pints of these fruits, how many more pints of strawberries than blueberries were there in the crate?

For a project, a square piece of cloth is folded in half and sewed together to form a rectangle that has a perimeter of 36 centimeters. What was the area in square centimeters of the piece of cloth before it was folded?

How many positive 4-digit integers begin (on the left) with an odd digit and end with an even digit?

For a certain farm, soybean production increased by 25 percent from year X to year Y, and the selling price of soybeans decreased by 25 percent from year X to year Y. If the entire soybean production was sold each year, approximately what was the percent change in the revenues from the sale of the soybeans from year X to year Y?

Which of the following sums is greater than 1?

If the vertices of a triangle have rectangular coordinates \((0,0)\), \((8,0)\), and
\((8,6)\), respectively, then the perimeter of the triangle is

For how many of the areas listed was the average vehicle occupancy rate for commuters less than 1.8?

The average vehicle occupancy rate for commuters to County Y is most nearly