Which one of the following could be the list of the students who work the second shifts at the gallery, in order from...

Emil-Kunkin on March 31, 2022

Hi @Tyler808,

I don't think that the second rule necessarily contradicts the first rule.

We have a setup with five days, and two shifts per day, which could look like this

_ _ _ _ _
_ _ _ _ _

Rule 1 tells us that no students works both shifts on the same day, which means for example that H couldnt work both shifts on monday. So, the following diagram is not allowed

H _ _ _ _
H _ _ _ _

Rule 2 tell us that 2 days in a row, L works the second shift. This could look like the following diagram

_ _ _ _ _
_ _ L L _

And rule 3 tells us that on 2 nonconsecutive days G works shift 1, which mich look like this

_ G _ _ G
_ _ _ _ _

The first rule only bans someone from working both shifts on the same day.