If Shaw conducts the fourth interview, which one of the following could be true?

on April 29, 2020

Please explain how we get to this answer choice

I don't understand why g cannot be 3rd or fourth?

Reply

Ben on May 6, 2020

Hi Kassidee, thanks for the question.

When S = 4 we have two templates

Q __ R S

F __ __ __


And


__ Q R S

__ F __ __


In the first scenario, 3 cannot be G or I because then either 2 or 4 would G or I and this would violate them not being beside the other. This means 3 is H. If H is R, then G must be R and its only possibility to be R would be in slot 2. And slot 4 would be I.

Q R R S
F G H I

In the second scenario, 3 and 4 cannot both be G and H because then they would be different in terms of R/S/Q. One of G/H must be one and the other must either be 3 or 4. The other 3/4 must be I. This leaves us with..

R/S Q R S
G/H F I G/H

With I in 3 and G/H in 4 being interchangeable. However, we need to realize that we cannot have G in 3 or 4 because it would be beside I. Meaning that the latter G/H is H and the earlier is G

R/S Q R S
G F I H

With the I and H being interchangeable. This is why G can never be 3 or 4.

I hope this helps and you were able to follow it in written format like this. Please let me know if you'd like me to clarify anything!