There are 48 students in a class

There are 48 students in a class. Find the numbers of ways in which a committee of 2 students is to be formed?

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 #6329