Jacob is 18years old

Jacob is 18years old. He is 2 times as old as his brother. How old will Jacob be when he is twice as old?

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 #6762