Which one of the following CANNOT be true?

Jaimee on October 3, 2018

Can you please explain?

Can someone please explain the correct answer?

1 Reply

Mehran on October 16, 2018

@Jaimee-Salgado if W is shown immediately before R, the following scenario would result:

WR > S

This is entirely based on the condition set forth in the question stem (i.e. WR) and rule 3 (R > S).

This means that the WT block is not possible, which invokes the contrapositive of rule 4.

This allows us to deduce that T > W (i.e. Waterloo is not shown earlier than Terry).

So we now have the following chain:

T > WR > S

We know T has to be on the half hour but with 3 shows behind it (i.e. W R and S), 2:30 and 3:30 are eliminated as possibilities, which means that T would have to appear in 1:30:

1 T
2 W R
3 S (note: S could also be at 3:30 instead of 3)

But we have nowhere to place GG, so (B) cannot be true.

Hope that helps! Please let us know if you have any other questions.