In one hour, there are 3 sets of 20 minutes.

So, Joy can read 8 x 3 = <<8*3=24>>24 pages in an hour.

It will take her 120/24 = <<120/24=5>>5 hours to read 120 pages.

# Answer

5
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Joy can read 8 pages of a book in 20 minutes. How many hours will it take her to read 120 pages?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
5
Joy can read 8 pages of a book in 20 minutes. How many hours will it take her to read 120 pages?
train