Question

Two postal delivery workers have different routes. they both travel from the post office, to neighborhoods to deliver mail, and then back to the post office. which statement must be true about the two delivery workers?

Answer 1

I don’t have enough information to pick a non‑trivial necessary fact. From what you gave, the only thing that must be true is the trivial one:

- Both workers started at the post office and later returned to the post office.

Nothing else is guaranteed without extra assumptions. For example:
- They need not visit any of the same neighborhoods.
- They need not travel the same distance.
- They need not meet each other at any time other than the common start/end.
- They need not use any common streets except possibly those at the post office.

If you have extra details (e.g. they leave at the same time and travel continuously, or you have multiple-choice options), tell me and I’ll give the intended conclusion.