Problema Solution
Two classmates have decided to read all the volumes in a popular series of books. Becky has already read 12 volumes and will continue to read new ones at a rate of 1 volume per week. Carly, who hasn't started reading the series yet, will read 4 volumes per week. At some point, Carly will catch up with Becky and they will be reading the same book. How many volumes will each girl have read by then? How long will that take?
Answer provided by our tutors
Let x represent the number of weeks that the girls will read until they read the same book
12 + 1*x = 4*x
........
........
x = 4 weeks
In 4 weeks each girl would have read 12 + 1*4 = 4*4 = 16 volumes.
It will take them 4 weeks.