This is a great thread - Kudos.

The usual suspects in my book would be:

- Probability/Combinations - 7-t56486
- Statistics
- Coordinate Geometry
- Arithmetic sequence of numbers (rare)
- Yes/No DS Questions
- Overlapping sets (could be tricky)

There are questions on these topics - see Walkers thread for a good primer on Probability and Combinations, but lack of 700+ level questions was the main reason we created

GMAT Club Tests - to give folks at Q47 ability to go to Q51. So, take a look at the

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