Q22

[ManhattanPrepLSAT1]

For Question 22:

I can't seem to understand the answer to this one. A, D, and E are obviously wrong. I can't distinguish between B and C. can you take me through this?

[ManhattanPrepLSAT1]

Hey there, Paul!

It's kind of a tricky one because it's an inference no one makes up front. On the other hand, if you're organized and orderly (as we discussed recently), it really poses no problems.

Naturally you got the other inferences up front, and quickly eliminate three choices. ~O in 1/6, ~J in 4/9, ~M in 5/10.

And, of course, if it comes down to K and L, we have to pay attention to the one constraint dealing with these: ~KL.

Since you don't have the inference for this one up front, all you've got to do is try one of the choices out. If it works, yay! It's the answer. If not, the other one is the answer.

So, can K go in 5?

_ _ _ _ K _ _ _ _ K

Just look at the first 5 slots and go through the list of constraints. Do we have room for M - O? OJ? L?

Sure! The chunk is a great place to start on number line games. Where can OJ go? Well, J can't go in 4, and O can't go in 1. Only option is 2 and 3. Then M has to go before O.

M O J _ K. And L can go in the space with no problems. This is our answer.

Why not L in 5?

_ _ _ _ L _ _ _ _ L

Ah! Same scenario as above with M--OJ. There's only one option:

M O J _ L.

One space left for K, and guess which rule that violates?

[kevlee11]

I looked at my work from Question 20
M O J L K M O J L K
1 2 3 4 5 6 7 8 9 10

Saw K in 5 and selected that.

I have a tendency to forget looking at work in previous questions, so I force myself to try doing that on occasion now.