@Martin
I reset the NInja MCQ each time so honestly I'm not sure, but I guess I've probably gone through all of them at least once. This is the percentages from my previous AUD attempt.
Category Description Total Questions Questions Not Answered Correctly Questions Not Seen Total Question Attempts Average Score Average Trending Score Total Time Average Time
1 Auditing and Attestation: Engagement Acceptance… 136 81 69 80 80% 88% 1:29 0:01:07
2 Auditing and Attestation: Understanding the Ent… 245 152 122 154 72% 67% 3:57 0:01:32
3 Auditing and Attestation: Performing Audit Proc… 380 257 204 219 64% 83% 8:38 0:02:22
4 Auditing and Attestation: Evaluating Audit Find… 295 235 213 93 73% 76% 2:36 0:01:41
5 Accounting and Review Services Engagements 172 88 63 175 73% 69% 6:43 0:02:18
6 Professional Responsibilities 139 77 66 90 81% 79% 1:39 0:01:06
Question Session Totals: 1367 890 737 811 72% 77.00% 25:05:00 0:01:51