by ohthatpatrick Thu Jan 24, 2019 8:06 pm
From the setup, we can think about who each character can pass to:
J can pass to K/L
K can pass to L/M
L can pass to K/M
M can pass to anyone, but since no one else can pass to J, M has to always pass to J.
In order for L to have something on Tues, pass it off to someone on Wed, and then get it back on Thurs, it'll have to be that the person he gives it to on Wed has the option to give it back to L on Thurs.
Who can L give it to?
tue wed
L --> K
L --> M
Can they both give it back to L on thurs?
tue wed thurs
L --> K --> L?
L --> M --> L?
M can't give it to L, because M always gives to J.
So it'll have to go L -> K -> L, on tues/wed/thurs.
Where could it have come from? Both J and K can pass to L, so the week would look like this:
mon tues wed thurs
J/K --> L --> K ---> L
(A) could be K
(B) could be J
(C) can't be M
(D) can't be J
(E) YES, must be K