1/4 of all married couples have more than one child

1/4 of all married couples have more than one child. 1/5 of all married couples have more than 3 children. What fraction of all married couples have 2 or 3 children?

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 #78560