This is a true story problem...
Kayla worked Grace's Thursday shift.
Grace is working Kayla's Saturday shift.
Kayla and Grace are working together on Monday.
So...
Let G=Grace
Let K=Kayla
Let T=Thursday
Let S=Saturday
Let M=Monday
If T, then K=G
If S, the G=K
Therefore
M=K+G
Denis Streeter 5/17/13
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