3 hours to read 189 pages . What is the rate per hour at which he reads the book?
To find the rate per hour at which he reads the book, we divide the total number of pages by the total number of hours:
189 pages / 3 hours = <<189/3=63>>63 pages per hour.
Therefore, he reads the book at a rate of 63 pages per hour.
To find the rate per hour at which he reads the book, divide the total number of pages (189) by the total time taken (3 hours):
Rate per hour = Total pages / Total hours
= 189 pages / 3 hours
= 63 pages/hour
Therefore, the person reads the book at a rate of 63 pages per hour.