What do with weird topics from pre-2010 exams?

Ran into a question in an old AM exam about WACC that incorporated beta with two different balance sheets (non pension and pension) Conceptually you could work it out, but I definitely didn’t see it covered at all in the 2014 curriculum.

With 2 weeks left, should you just let it go when there’s old stuff that has been removed from the curriculum?

If it’s not in the 2014 LOS then it’s not on the exam.

This link is useful too : http://www.analystforum.com/forums/cfa-forums/cfa-level-iii-forum/91329288