Online Course Discussion Forum
AIME Workshop Advanced Combo Answer Key
I checked the answers for some of the P problems in the Combo answer key, but they don't match up with the answers we arrived at in class. (We got that P8 was 556 in class, but the answer key says it is 90)
Specifically, what would the correct answer be for P9?
P9 should be 67.
We also just updated the course page with updated slides and answer keys (now a single pdf for all the slides and a single pdf for all of the answers). This file doesn't seem to have the discrepancy you noticed, so probably something was wrong with the older version.
Let us know if you have any more questions!