In a class, the average age of 25 boys is 12 years…

In a class, the average age of 25 boys is 12 years and the average of 18 girls is 8 years. what is the average age of the whole class?

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 #71641