Lizzy: Twenty years ago, Shane was 2 times older than Garret is now. If Garret is currently 12, how old is Shane now?.
Me: Hmmm, let me think. I think this is the detailed solution:
Twenty years ago, Shane was 12 * 2 = 24 years old. Shane is currently 24 + 20 = 44 years old. Final answer: 44.