pennyless

For example, the Alternative Investments section is 18 points.

Since each question is worth 3 points, you know it's 6 questions.
If your score was <=50%, then you put your Min score as 0, and your Max score as 3
If your score was 51-70%, your score must be 4
If your score was >70%, your Min score is 5 and your Max score is 6

Repeat this for all categories
Then add up your min scores, and add up your max scores, and finally multiply by 3 to get your overall min/max!