I remember that nav question. took me ages to work out what the hell the confused confuser was going on about so i put it down and went to bed. got up the next morning and sat the exam and passed, geting that question right.
it just proves that when you understand it and think about it, you will get it right. just go through it in you head.....
just lined up on finals, full flap... whats your speed doing? how is the app looking?
do it in your head in the exam and you will pass 1st time!
good luck and happy flying!