June 2002 LSAT Section 3 Question 8

If X is the third arrival, then which one of the following trucks must be green?

Nic-Teodosescu on January 22, 2021

determining color order

Hello, For this problem and the last one, I am having a difficult time determining color order. I've established that Y goes either in the 4th position or the 5th position (making the order RGR(Y)_(S)_ or RGRG(Y)(S)_ or GRGR(Y)(S)_.) I'm getting confused with the rule (or lack thereof) regarding green trucks, which does allow consecutive green trucks. How do you determine the order or color trucks at Y and after?

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Emil-Kunkin on November 20, 2023

I think you're missing one key deduction: Y cannot go fifth. Remember, s is sixth, and we still need room for two other things after Y, so y must be fourth, and T/w must be fifth or seventh. That means the reds and greens must be your first listed scenario.