A father said his son, " I was as old as…

A father said his son , " I was as old as you are at present at the time of your birth. " If the father age is 62 now, the son age 5 years back was

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 #2388