Home




GMAT Question Bank


A newborn kangaroo, or joey, is born after a short gestation period of only 39 days. At this stage, the joey’s hind limbs are not well developed, but its forelimbs are well developed, so that it can can climb from the cloaca into its mother’s pouch for further development. The recent discovery that ancient marsupial lions were also born with only their forelimbs developed supports the hypothesis that newborn marsupial lions must also have needed to climb into their mothers’ pouches.

The argument in this passage relies on which of the following assumptions?

[A] All animals that are born after a short gestation period are born with some parts of their bodies underdeveloped.
[B] Well developed...

Set A consists of integers -9, 8, 3, 10, and J; Set B consists of integers -2, 5, 0, 7, -6, and T. If R is the median of Set A and W is the mode of set B, and R^W is a factor of 34, what is the value of T if J is negative?

(A) -2
(B) 0
(C) 1
(D) 2
(E) 5

Solution

This problem demonstrates a helpful note about statistics problems – quite often the key to solving a stats problem is something other than stats: number properties, divisibility, algebra, etc. The statistics nature of these problems is often just a way to make a simpler problem look more difficult.

Here, the phrase “factor of 34? should stand out to...


When Al Gore's 'An Inconvenient Truth' earned awards and accolades and demonstrated Global Warming as a human-induced phenomenon, not many scientists looked beyond the research papers from 'US Global Change Research Program'. The 2006 documentary was a fodder to Global Warming alarmists, who forgot the fundamental fact that the average temperature has climbed by only 1.4 degrees Fahrenheit (0.8 Degree Celsius) since global temperatures began to be monitored systematically from 1880.

The research by Andrew Dessler and his team from Texas A&M University has confirmed the previous debated theory that Water Vapor is the most contributing greenhouse gas, doubling the climate warming caused by the increased levels of...