Question

Dawn is an avid reader and reads 30 pages every 8 days. Part A How many pages per day does Dawn read? Part B At this rate, Dawn takes 28 days to read her favorite novel. How many pages does the novel have?

Answer 1

Let's find the girl's reading rate:  It is:

30 pages
------------ = 3 3/4 pages per day = 3.75 pages/day
 8 days

It takes her 28 days to read her novel.  To find out how many pages the novel has, we write out:

    28 days
--------------------  = # of pages = 105 pages
      1 day
     --------------
    3.75 pages

Another way in which to do this may be shorter and simpler:  Write and solve the equation of two ratios:

  30 pages            p
--------------- = -------------
   8 days          28 days

Then 30(28) = 8p, and p = # of pages in novel = 105