Which of the following is always true

Which of the following is always true? (I) The average (arithmetic mean) of five negative consecutive integers is equal to the average of the largest and smallest of them. (II) The average (arithmetic mean) of four positive consecutive integers is equal to the average of the largest and smallest of them. (III) The average (arithmetic mean) of five consecutive integers is equal to the average of the largest and smallest of them.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #93376