The # of math questions of each type never changes - 15 DS, 22 PS, always. The # of each of the 3 types of verbal questions does vary, but they haven't said how the algorithm determines how many of each to give. It's probably a combination of multiple factors, including experimentals and the natural constraints of RC (you have to give a certain number of questions in a clump) - but I have no idea whether individual performance is one of them. Only the people who make it know - and they don't release that info.
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Stacey Koprince
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