2011 AIME II — Reflection Notes
Correct: 8, 9, 10, 11, 14, 15
We did #10 during our lesson already.
#15 – made a calculation error but corrected it.
Need Review / Unclear:
#12 – did not understand PIE solution (Principle of Inclusion–Exclusion).
#13 – understood the solution, but it was slightly confusing for me.
