The average of 45 results is 8

The average of 45 results is 8. The average of first 22 of them is 15 and that of last 22 is 20. Find the 23 result?

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 #18355