In a class of students, the ratio of girls to boys is…

In a class of students, the ratio of girls to boys is 2:5. If 4 more girls joined the class, the ratio would be 1:2. How many students are in the 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 #49369