Average of five numbers is 8, and the sum of three of…

Average of five numbers is 8, and the sum of three of the numbers is 21, what is the average of the other 2 numbers?

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 #10869