41. It takes Craig 20 minutes to type n pages. At these rates, how many hours will it take him to type 100 pages?

Question

All i know is 20/n

Answer 1

you want to convert 100 pages to minutes.

Your conversion factor is

20 minutes = n pg
20min/n pg = 1

Now multiply vy that to cancel the unwanted units:

100 pg * 20min/n pg = 2000/n min