Question

Which completes the syllogism?

If the time is between 9:00 AM and 5:00 PM, then the post office is open.
If the post office is open, then people may buy stamps or mail packages.
Therefore, if …



people may buy stamps or mail packages, then they can also send express mail too.
the post office is open, then it is Friday.
the time is between 9:00 AM and 5:00 PM, then many people are likely at work and unable buy stamps or mail packages.
the time is between 9:00 AM and 5:00 PM, then people may buy stamps or mail packages.

Answer 1

A syllogism is

If P, then Q
If Q, then R
Therefore, If P, then R

Answer 2

so it's like a chain event

P leads to Q
Q leads to R

So inevitably, P leads to R