An alloy is to contain copper and zinc in the ratio 5:3

An alloy is to contain copper and zinc in the ratio 5:3. The zinc required to be melted with 40kg of copper is?

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 #44882