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December 2015 LSAT
Which one of the following is a potter whose bowl must be displayed?
on June 7, 2019
Can you please explain how we should know that O must be included?
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on June 8, 2019
Happy to help.
We know that if L is in, M is out.
L - >/M
M - >/L
This means at least L or M is out, and maybe both are.
Rule 2 says P is in only if it's next to O and S
P - >OPS
What if P is out? Well, if P is out, we already know that L/M is out,
and there are only 2 out spaces. This means that both O and S must be
in. In looking at the answer choices, we see (B) says O must be in, so
(B) is the correct answer choice.
Hope this helps. Let us know if you have any other questions!