Question

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

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