Q19

[ttunden]

hello i got this question wrong and chose E instead of A


my diagram was
M-H-L-F-G-K

my contenders were A,B, and E

i was going to choose A rather than b and e but when i tried reorganizing the diagram , i realized no other diagram could be made
ex. cant be lmhfgk or hmlfgk because of the rules of the game. so i chose E and i wanted to know why it would not be E because there are no other diagrams to be made after the first diagram I made.

[ohthatpatrick]

Hmmm, I think you may have misrepresented a rule or misinterpreted what they mean.

You said we couldn't have
LMHFGK

But that's fine. If you run down the four rules, that scenario complies with all four rules.

HMLFGK is indeed broken (it breaks rule 4).

Basically, we know that FGK must be 4/5/6, leaving M,H,L for the first three spots.

Because M is before K, M must also be before H.

L, on the other hand, is free to be 1, 2, or 3.

The only rule that deals with L is rule 3, but it only has an effect on L if F - M. In this scenario, F is after M, so this rule evaporates completely.

I think you were getting confused by reading rule 3 (or its contrapositive) backwards and forcing yourself to believe you needed H - L.

Let me know if this doesn't resolve your confusion.

[timmydoeslsat]

I would like to add that you could frame this game, though you must keep in mind the F-M conditional rule with the left frame. :



So in the context of question 19, you would know that with F being fourth, we are dealing with the left frame since the right frame has three variables following F.

Once you place F into spot 4, we know that G and K must follow in that order into the last two spots.

We now know that the F-M rule is not going to trigger. We now know that we have no rules regarding L. We must, however, maintain the M-H sequence.



But nonetheless, the answer to this question is the simple upfront inference that G is fifth (A).