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Using a computer model to estimate future productivity, the accuracy of such an estimate is higher than that achieved us

Using a computer model to estimate future productivity , the accuracy of such an estimate is higher than that achieved using more subjective methods. A. Using a computer model to estimate future productivity B. By the use of a computer model to estimate future productivity C. If a computer model is...


It is proposed to introduce mosquitoes into the wild with genetic alterations that destroy their disease-carrying

It is proposed to introduce mosquitoes into the wild with genetic alterations that destroy their disease-carrying capacity. In this way, the dangerous wild population could eventually be replaced with a harmless one without leaving room for another disease-transmitting type to flourish. One candidat...


At a constant Rate of flow, it takes 20 minutes to fill a swimming pool if a large hose is used and 30 minutes if a

At a constant Rate of flow, it takes 20 minutes to fill a swimming pool if a large hose is used and 30 minutes if a small hose is Used. At these constant rates, how many minutes will it take to fill the pool when both hoses are used simultaneously? A. 10 B. 12 C. 15 D. 25 E. 50 OA B Source: GMAT Prep


If p is a positive odd integer, what is the remainder when p is divided by 4 ?

If p is a positive odd integer, what is the remainder when p is divided by 4 ?

(1) When p is divided by 8, the remainder is 5.
(2) p is the sum of the squares of two positive integers.


OA D

Source: GMAT Prep


Fossils of a whale that beached on an African shore more than a million years ago and was subsequently butchered by

Fossils of a whale that beached on an African shore more than a million years ago and was subsequently butchered by hominids have been recovered by paleontologists. A. that beached on an African shore more than a million years ago and was subsequently butchered by hominids have B. that beached on an...


A major impediment to wide acceptance of electric vehicles even on the part of people who use their cars almost

A major impediment to wide acceptance of electric vehicles even on the part of people who use their cars almost exclusively for commuting is the inability to use their electric vehicles for occasional extended trips. In an attempt to make purchasing electric vehicles more attractive to commuters, on...


A rectangular photograph is surrounded by a border that is 1 inch wide on each side. The total area of the photograph an

A rectangular photograph is surrounded by a border that is 1 inch wide on each side. The total area of the photograph and the border is M square inches. If the border had been 2 inches wide on each side, the total area would have been (M + 52) square inches. What is the perimeter of the photograph, ...


Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl are twins and Beth and Duncan are also twins.

Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl are twins and Beth and Duncan are also twins. When the present ages of the four siblings are multiplied, the product is 900. If Beth is older than Abe, what is the age of Duncan? Assume the ages of all siblings to be integers. (1...


Because there are now so many prevalent incidences around the world, a group of researchers have launched an online data

Because there are now so many prevalent incidences around the world, a group of researchers have launched an online database to track induced seismicity. A. Because there are now so many prevalent incidences around the world, a group of researchers have launched an online database to track induced ...


The number of musicians employed to play accompaniment for radio and television commercials has sharply decreased over

The number of musicians employed to play accompaniment for radio and television commercials has sharply decreased over the past ten years. This has occurred even though the number of commercials produced each year has not significantly changed for the last ten years. Which of the following, if it oc...


By how many dollars was the price of a certain portable tape recorder reduced during a sale?

By how many dollars was the price of a certain portable tape recorder reduced during a sale?

(1) During the sale, the price of the tape recorder was reduced by 25 percent.
(2) The price of the tape recorder after the reduction was $36.


OA C

Source: Princeton Review


A study followed a group of teenagers who had never smoked and tracked whether they took up smoking and how their mental

A study followed a group of teenagers who had never smoked and tracked whether they took up smoking and how their mental health changed. After one year, the incidence of depression among those who had taken up smoking was four times as high as it was among those who had not. Since nicotine in cigare...


A list of numbers has six positive integers. Three of those integers are known: 4, 5 and 24 and three of those are

A list of numbers has six positive integers. Three of those integers are known: 4, 5 and 24 and three of those are unknown: x, y and z. The three unknowns are known to be distinct. It is also known that the mean of the list is 10 and the median lies between 7 and 8 (exclusive). Which of the followin...


What is the value of n in the equation: - 25 + 19 + n = s ?

What is the value of n in the equation: - 25 + 19 + n = s ?

(1) s = 2
(2) n/s = 4


OA D

Source: Official Guide