A certain club has 6 members, including Harry

A certain club has 6 members, including Harry. One of the 6 members is to be chosen at random to be the president, one of the remaining 5 members is to be chosen at random to be the secretary, and one of the remaining 4 members is to be chosen at random to be the treasurer. What is the probability that Harry will either be the secretary or the member chosen to be the treasurer?

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 #67733