Ten years ago, P was half of Q's age

Ten years ago, P was half of Q's age. If the ratio of their present ages is3:4, what will be the total of their present ages?

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 #4964