If the sum of 7 consecutive integers is x, which of the…

If the sum of 7 consecutive integers is x, which of the must be true? I. x is even II. x is odd III. x is a multiple of 7

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #10279