If the average (arithmetic mean) of the four numbers 3, 16, 33…

If the average (arithmetic mean) of the four numbers 3, 16, 33, and (N + 1) is 20, then N =

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 #17935