Rich Zwelling is one of the expert teachers in Knewton’s GMAT course. “Combinatorics” is a word he throws around casually. – I was recently discussing a particular GMAT problem with a friend, and as so often happens with standardized-test nerds, the discussion turned into an extended analysis. We can’t help ourselves, I suppose. The question went something like this: Jim and John are workers in a department that has a total of six employees. Their… Read more
Posted in GMAT, GMAT Tips, Quant Guide | 5 comments
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