Scoring hidden questions

I need some other brains on this one!


I have a page on which a question shows when certain criteria is met. Okay. That's easy enough.


If the question shows, the student answers and is scored accordingly. Again, a no-brainer.


However, if the question doesn't show, the question should not be included in the score (or it will have a negative impact on the students' results) This is what I can't get to work.


Any ideas as to how I could accomplish this?


Thoughts/suggestions/ideas would be greatly appreciated.

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