I am confused
Started by
jonah-Mead-Vancort
· started 2019-08-11 21:48
· last activity 2019-08-12 03:04
· 1 reply
for question five, if p is 5, doesn't t need to be 6 since the rule (5) says P>T?
also, I see why answer (c) is right but why is the answer (e) wrong?
-
Irina
· 2019-08-12 03:04
@jonah-Mead-Vancort,
It depends - P>T condition applies only if F left any messages. Since it is possible to come up with a valid order where G & F left no messages, e.g. T H H H P L - it is possible that T is not #6.
Let's consider (E) - F left 3d and 4th messages:
H F F P L
__ __ __ __ __ __
1 2 3 4 5 6
Per rule (5), we know that F -> P & T, P > T, but we have no space to fit T because it must go to #6 and that is also the only spot that L could go in because L must come after H and H cannot be #1 per rule (1). Thus, (E) cannot be true.
Does that make sense?
Let me know if you have any further questions.
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