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Data Sufficiency and number properties [#permalink]
07 Sep 2006, 07:35
I just finished the entire quant on OG and OG supp. I've noticed that my ds is weaker than ps, which I'm sure is common to most people. Sometimes a ds question can be solved in a few seconds (w/o actually solving the problem) but it can also take forever.
I have noticed one important thing about data sufficiency and tell me if I'm wrong. DS questions seem to test number properties extensively, more so than any other types of math questions.
I'm thinking of picking up MGMAT's number properties to get better at DS questions.