Lesson: Data Sufficiency Challenging - 21

Unexpected Combinations

[Page 21 of 24]

The most difficult Data Sufficiency questions may very well be those that combine concepts that most of us never think of as compatible. When you see one of these, don’t panic! Just because the question looks unusual doesn’t mean you can’t figure out the answer.

Remember, the underlying math must still be based on concepts you’ve dealt with before in your CAT course. What you need to do is pick the question apart, deal with the concepts separately at first, and then figure out how they work together.

Let’s take an example.

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