Lizzy: In 5 years, Andy will be twice as old as Rahim is now. Rahim is 6 now. How much older is Andy than Rahim, right now, in years?.
Me: Hmmm, let me think. I think this is the detailed solution:
Andy will be 2 * 6 = 12. Now he is 12 - 5 = 7. So Andy is 7 - 6 = 1 year older than Rahim. Final answer: 1.