If A is the average (arithmetic mean) of 3 consecutive negative integers…

If A is the average (arithmetic mean) of 3 consecutive negative integers, which of the following must be true? I. A is a negative integer. II. A is a nonzero integer. III. A is a multiple of 3.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #3987