The answer to this question is 9. To solve this, you need to make some ratios. Your first ration will be 27:60, because that represents 27 pages every 60 seconds. The second ratio is
?:20. Compare these: 27:60 = ?:20. 60 divided by 20 is 3. Divide 27 by 3, and you get 9. I hope this helps!