Q18

[e.sterlingsmith]

Got this during my review fairly simply through Plug and Chug but guessed E (T and Y cant test F) during the actual practice test due to time constraints. I assumed this was most likely due to them both having a decent amount of restraints (T must test H, Y must accommodate S testing on the second day and Y cannot go in H or J) Was there a simpler way to figure this out? I'm wondering if I may have missed an inference.

Thanks in advance.

[ohthatpatrick]

Seems like a mainly plug-n-chug question to me.

We can get rid of (A) using work we did for Q14 and get rid of (B) using work we did on Q17, but the other three would need to be examined.

I had two frames, since the YS chunk only had two possibilities (row F or row G), so that would somewhat speed up my process of mentally/physically testing the remaining choices.

(C):
RY in G forces me into the frame where YS is in row F.

F: Y, S
G: R, Y
H: S, T
J: T, R

(C) works.

(D):
ST in G also forces me into the same frame

F: Y, S
G: S, T
H: T, R
J: R, Y

We have to split up the 2 R's that are left, and we know that T still needs to go in H, so we're screwed. Y is gonna get forced into J, where it doesn't belong.

Pick (D).

That's theoretically the quickest way. (D) breaks for non-obvious reasons.

(E) is fine.
TY in F means we're putting YS in G.

F: T, Y
G: Y, S
H: R, T
J: S, R

[ShehryarB30]

I still don't understand how D is wrong. Could you pls explain it a bit further