A bag contains 6red, 5blue and 2green balls

A bag contains 6red, 5blue and 2green balls. If 2 ballsare picked at random, what is the probability that both are red?

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 #38058