In a mixture of milk and water, the proportion of milk by…

In a mixture of milk and water, the proportion of milk by weight was 70%. If, in a 200-gram mixture, 40 grams of pure milk is added, what would be the percentage of milk in the resulting mixture?

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 #50172