Q23

[kimjy89]

I am ok with the set up but I am not sure how to think about Q23.

Thank you.

[ManhattanPrepLSAT1]

The way I would approach this question might be different than others, and I'm open to hearing suggestions.

Here's how I would take this one on. The first constraint requires that no speaker speaks in the first two slots more than twice. There are 6 spots combined in all three meetings and 5 speakers. So there can only be one repeat. This eliminates answer choices (A) and (B). Of answer choices (C), (D), and (E), (D) and (E) are more limiting than answer choice (C), so I would check answer choice (C) first, to see if it could be true.

Here's a hypothetical that shows that answer choice (C) could be true, I'd mark it at that point and move on.

R T Q S U Meeting 1
U Q R T S Meeting 2
S R T Q U Meeting 3
1 2 3 4 5

Of course, the reason why answer choices (D) and (E) don't work, is that both of them for different reasons would lead to a violation of the first constraint. (D) would never allow T to appear in the first two slots, and (E) would require T to repeat in the first two slots more than twice.

Does that clear this one up?