Explanation

Say that x = 2. That means that over 60 percent of the numbers are less than 2. If you consider there are an infinite number of numbers between 0 and 2 when you use decimals. So the 60 percent would look like (0.1, 0.12, 0.1579, 0.2, 0.29,etc).

Say that y = 1. That would mean 40% of the numbers are between 0 and 1, and another 20% are between 1 and 2 to satisfy both y = 1 and x = 2. So x – y = 2 – 1 = 1. In this case, Quantity B is greater.

But what if x were at the other extreme of the range, such as x = 48? If we keep y = 1, that would mean that 40% of the numbers were between 0 and 1 and the next 20% were between 1 and 48 (and the remaining 40% were between 48 and 50). Now x – y = 48 – 1 = 47. In this case, Quantity A is greater. Thus, the relationship cannot be determined.
_________________

Get the 2 FREE GREPrepclub Tests