Lizzy: Jessica is six years older than Claire. In two years, Claire will be 20 years old. How old is Jessica now?.
Me: Hmmm, let me think. I think this is the detailed solution:
Claire's age now is 20 - 2 = 18 years old. Being 6 years older than Claire, Jessica is 18 + 6 = 24 years old. Final answer: 24.