Which one of the following is an acceptable schedule for the librarians, listed in order from Monday through Saturday?

Nicholas on May 31, 2020

Question Set Up

How do you assume that K cannot be on Saturday? I do not see that in a rule or inference that it cannot be placed on that day.

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on June 1, 2020

Hello @Nicholas-Groblewski,

This inference comes from the 4th rule: Kitson must be on desk duty earlier in the week than Zahn.

If K were placed on Saturday, then there is no later day for Zahn to be placed. This is why K cannot be on saturday.