The GMAT is adaptive (CAT), meaning if you answer questions correctly you get harder questions. How does this algorithm work in case of RC passages? Questions related to a RC passage are, generally, grouped in sets of 3, 4 or 5. Suppose, you answered both the first and the second question for a passage correctly. Would the 3rd question be more difficult or would the text of the next passage be more difficult? Also, suppose you answered 4-5 say, SC questions correctly before you encounter your first RC passage. Would you get a harder passage? Had you not answered the SC question correctly, would you get an easier passage?

So, what I am asking is how does the adaptive part work
1) between questions for a single passage
2) between separate passages
3) between SC-CR-RC together?

I am just curious.