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The noise caused by airplanes during takeoff and landing imposes a large burden on people who live or work near airports

The noise caused by airplanes during takeoff and landing imposes a large burden on people who live or work near airports. When airports operate late at night or early in the morning, the disturbance can disrupt normal sleeping patterns, even leading to severe sleep deprivation disorders. When the fl...


As a bicycle salesperson, Norman earns a fixed salary of $20 per week plus $6 per bicycle for the first 6 bicycles he

As a bicycle salesperson, Norman earns a fixed salary of $20 per week plus $6 per bicycle for the first 6 bicycles he sells, $12 per bicycle for the next 6 bicycles he sells, and $18 per bicycle for every bicycle sold after first 12. This week, he earned more than twice as much as he did last week. ...


If 25% of the employees at a firm did not take a vacation last year, what percent of the employees received a promotion?

If 25% of the employees at a firm did not take a vacation last year, what percent of the employees received a promotion? (I) Only 1 out of every 3 employees who took a vacation last year received a promotion. (II) The number of employees who took a vacation but did not get a promotion was 500% of th...


After determining the levels of calcium carbonate and the types of fossilized algae present in core samples taken from

After determining the levels of calcium carbonate and the types of fossilized algae present in core samples taken from the bottom of Lake Titicaca in the Andes, a group of scientists was able to reconstruct the history of precipitation in tropical South America over the past 25,000 years. A. the typ...


When an airplane is taken out of service for maintenance, it is often repainted as well, and during the repainting no

When an airplane is taken out of service for maintenance, it is often repainted as well, and during the repainting no other maintenance work can be done on the plane. In order to reduce maintenance time, airline officials are considering using a new nontoxic plastic film instead of paint. The film t...


Triangle XYZ is an isosceles right triangle. If side XY is longer than side YZ, and the area of the triangle is 16, what

Triangle XYZ is an isosceles right triangle. If side XY is longer than side YZ, and the area of the triangle is 16, what is the measure of side XY?

A. 4
B. 4√2
C. 8
D. 8√2
E. Cannot be determined from the information provided



OA C

Source: Veritas Prep


Machines X and Y can work at their respective constant rates to manufacture a certain production unit. If both are

Machines X and Y can work at their respective constant rates to manufacture a certain production unit. If both are working alone, then the time taken by machine Y is what percentage more/less than that of machine X? (1) Machines X and Y, working together, complete a production order of the same size...


A wooden crate has inside dimensions 3 meters by 4 meters by 12 meters. What is the length, in meters, of the longest,

A wooden crate has inside dimensions 3 meters by 4 meters by 12 meters. What is the length, in meters, of the longest, straight, inflexible rod of negligible diameter that can be placed completely within the crate?

A. 12
B. 12.6
C. 13
D. 19
E. 24


OA C

Source: Princeton Review


In the 30-day month of June, a motorcycle dealership sold a different number of motorcycles each day. If it recorded at

In the 30-day month of June, a motorcycle dealership sold a different number of motorcycles each day. If it recorded at least one sale each day, did the dealership sell at least 525 motorcycles during June? (1) The smallest number of motorcycles sold on any one day was 3. (2) The second highest numb...


Critics of certain pollution-control regulations have claimed that the money spent over the last decade in order to

Critics of certain pollution-control regulations have claimed that the money spent over the last decade in order to reduce emissions of carbon monoxide and of volatile organic compounds has been wasted. The evidence they offer in support of this claim might appear compelling: despite the money spent...


A technician makes a round-trip to and from a certain service center by the same route. If the technician completes

A technician makes a round-trip to and from a certain service center by the same route. If the technician completes the drive to the center and then completes 10 percent of the drive from the center, what percent of the round-trip has the technician completed? A) 5% B) 10% C) 25% D) 40% E) 55% OA E ...


Is the integer n odd?

Is the integer n odd?

(1) n is divisible by 3
(2) 2n is divisible by twice as many positive integers as n


OA B

Source: GMAT Prep

by BTGmoderatorDC

Mon May 03, 2021 3:07 pm
Forum: Data Sufficiency
Topic: Is the integer n odd?
Replies: 0
Views: 20

x is a single-digit positive integer. If the units digit of x^2 and the units digit of

x is a single-digit positive integer. If the units digit of x^2 and the units digit of (x+2)^3 is same. How many values of x are possible?


A. 2
B. 3
C. 4
D. 7
E. 9


OA C

Source: e-GMAT


Of the 1400 college teachers surveyed, 42% said they considered engaging in research an essential goal. How many of the

Of the 1400 college teachers surveyed, 42% said they considered engaging in research an essential goal. How many of the college teacher surveyed were women? (1) In the survey 36% of men and 50% of women said that they consider engaging in research activity an essential goal. (2) In the survey 288 me...


According to a survey of graduating medical students conducted by Association of American Medical College, minority

According to a survey of graduating medical students conducted by Association of American Medical College, minority graduates are nearly four times more likely than are other graduates in planning to practice in socioeconomically deprived areas. (A) minority graduates are nearly four times more like...