A 420-page book contains an average of 600 words per page, and Roslyn reads the book at the rate of 360 words per minute. How many hours did it take her to read the book? Express your answer as a mixed number.

Go into more detail for the mixed number part.

Step-by-step explanation:

Since each page contains 600 words, we can multiply 420 by 600 to get 252,000.

Roslyn reads at the rate of 360 words per minute.

She reads 700 words per minute.

Now that the question is asking for the number of hours, multiply 700 by 60, which gets you 42000.

252000/42000 = 6

It took Roslyn 6 hours to read the book.

What do you mean by the mixed number part?

with the mixed number its 11 2/3