Lizzy: Joy can read 8 pages of a book in 20 minutes. How many hours will it take her to read 120 pages?.
Me: Hmmm, let me think. I think this is the detailed solution:
In one hour, there are 3 sets of 20 minutes. So, Joy can read 8 x 3 = 24 pages in an hour. It will take her 120 / 24 = 5 hours to read 120 pages. Final answer: 5.