Q16

 
ShehryarB30
Thanks Received: 2
Elle Woods
Elle Woods
 
Posts: 100
Joined: July 07th, 2018
 
 
 

Q16

by ShehryarB30 Thu Jan 17, 2019 6:34 pm

Could you pls explain this
User avatar
 
ohthatpatrick
Thanks Received: 3806
Atticus Finch
Atticus Finch
 
Posts: 4661
Joined: April 01st, 2011
 
This post thanked 1 time.
 
 

Re: Q16

by ohthatpatrick Mon Jan 21, 2019 1:52 am

If we look at our chains for this game, we see the first rule telling us these two things:
~R --> N -> L
~N --> R --> M and ~L

It looks like we could have two people in either of those scenarios, so let's frame them out:

If R is out
N, L | R, M, P, Q

If N is out
R, M | L, N, P, Q

Is anything the same in both? The IN column is different each time, but P and Q show up in the OUT column in each world. So we'd expect the must be true answer to be P or Q is OUT.

Hence, (D).