June 2011 LSAT Section 2 Question 17

# Which one of the following could be the list of the vehicles serviced on Tuesday, Wednesday, and Friday, listed in th...

2 Replies

Skylar on December 28 at 03:33PM

@shafieiava, we are working on creating more video explanations. In the meantime, maybe I can help with a written explanation.This is a linear sequencing game with six variables. We can diagram it as:

HLPRSV

__ __ __ __ __ __

M T W R F S

The rules can be written as:

(1) H NOT= 6

(2) V-R-H

(3) (V/P)(P/V) OR (P/S)(S/P) BNB

(4) L-S-P OR P-S-L

Our new diagram looks like:

__ __ __ __ __ (L/P)

M T W R F S

not H

We know that V and R cannot be last because Rule #2 states that they must precede H. We also know that S cannot be last because of Rule #4. This only leaves L or P as possibilities for Saturday.

Now, let's look at this question. We can go through each answer choice and eliminate setups that would be impossible with our rules.

(A) __ P H __ L __

M T W R F S

This scenario is incompatible with Rule #2, because there are no open spots for V and R to precede H.

(B) __ P R __ H __

M T W R F S

We can fill this in as follows:

V P R S H L

M T W R F S

This meets all of the rules and is therefore correct.

(C) __ S L __ H __

M T W R F S

To meet Rule #2, we must put V in Monday and R in Thursday. However, this violates Rule #3, because there is no way for V to be next to P nor for S to be next to P.

(D) __ V L __ H __

M T W R F S

To meet Rule #2, we must put R in Thursday, This violates Rule #4 because S can only go at the beginning or end, so there is no way for it to be in the middle of L and P.

(E) __ V R __ L __

M T W R F S

To meet Rule #2 and Rule #1, H must go on Thursday, This violates Rule #4 because S can only go at the beginning or end, so there is no way for it to be in the middle of L and P.

Does that make sense? Let us know if you have additional questions or would like explanations for any of the other questions within this game. Best of luck with your studies!

Sabine on September 9 at 04:32PM

Is there a faster way to get to the answer instead of diagramming each answer choice?