December 2015 LSAT Section 3 Question 4

What is the earliest time that Wu could be scheduled to perform?

@MichaelaJ on November 3 at 01:41PM

Why is A incorrect?

Hello- I am not understanding why A is incorrect. If we are looking for the earliest time that W could go, if we look at question 2 in our set up we see that W can go as early as 9 a.m. What am I missing on this one? Thanks!

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Emil-Kunkin on November 4 at 02:26PM

The key here is that W must be immediately before Y, so we have a WY block. We also know that both Z and R must be in the morning. So, if we put W in the first slot, then we would have

W Y _ _ _ _,

Which doesn't leave us enough space to put both z and r in the AM.