The Quest for 700: Weekly GMAT Challenge

Each week Manhattan GMAT posts a 700 level GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge?

If x, y, and z are integers, with x < y < z, what is the average (arithmetic mean) of x, y, and z?

(1) (x + y)z = 5

(2) x + z < 3