Q10

[rsmorale]

How should I go about answering question 10?

[maryadkins]

It's a nonconditional question, so we should be able to answer it by making inferences off our diagram (see attached).

Start by checking out the letters that are the most constrained. For example, we see that L has to have 5 letters after it--P, N, O, K and M. That means it can only go in slots 1 and 2. That's not what we're looking for--we're looking for the letters we can place for certain in one slot--but this is how we're going to figure out which ones we know for sure.

If we look at the other end of our diagram, we see that M likewise has to have 5 letters before it--K, O, J, P, and L. That means it can only go in slots 6 and 7. But if it goes in slot 6, N has to go in slot 7, which violates the rule that N not go last. So M has to go in slot 7.

That's all we know for sure--play around with the other letters and you'll see everything else has 2 or more slot possibilities once we place M. (A) is the correct answer.