Though the math on the Exam is high-school level,
certain concepts are more difficult than others. The test makers know which
topics give test-takers the most trouble (that’s what those experimental
questions are for). If you prove that you can handle the basics (by getting
most of the early questions right), you’ll start to see content that’s
noticeably more difficult than what came before.
In Data Sufficiency you’ll see difficult problems
on exponents and roots, factors and multiples, more complex symbols, long
word problems (sometimes with figures), more complex geometry, and tougher
algebra.
The reason these topics receive so much coverage
is that they tend to be a little more abstract and/or have lots of rules
with exceptions that might slip your mind. Remember, part of what’s being
tested at this level is your ability to consider a problem from more than
one angle. So every time you get a tricky question involving number properties
and/or algebra, for example, you need to ask yourself whether there are
any relevant exceptions to whatever mathematical rules apply to the situation.
Keeping all this in mind, let’s take a look at a very tough exponents
question… .
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Test Prep Lessons With Video Lessons and Explained MCQ