LG Game 3 Question 14 Explanation, by LSATHacks
This is an unusual first question, but this is an unusual game. Normally, if the first question isn’t a list question, then you should have made many deductions. But there aren’t many deductions for this game.
The fastest way I found was to draw quick diagrams. Often you can prove two answer choices wrong with one diagram.
For example, this diagram proves A and E could be true:
This diagram proves that B can be true:
This diagram proves D can be true:
This diagram proves that C is CORRECT.
(The Xs represent the same division both days)
If the same division is toured on Tuesday and Thursday, then there’s no space to tour the two S’s in a row.
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Dear Graeme,
I’m a bit confused with how the contrapositive logic works.
If Oth –> Pfri then
~Pfri –> ~Oth
I read the contrapositive as, if Production does not happen on Friday, then Operations does not happen on Thursday.
However for choice D, we are able to put O for Wed and Fri despite the fact that P is not happening on Friday.
Perhaps, I’m getting this all twisted, but could you help explain?
With best wishes,
T
You’re definitely reading and diagraming the contrapositive correctly. But, the scenario in (D) does not violate either of those conditional statements. O is not on Thursday, so the first conditional statement is not triggered. And yes, P is not on Friday, but the second conditional statement indicates that this just means that O is also not on Thursday. O is on Wednesday and Friday in this diagram, so (D) checks out.