Answer: The speed of Oliver is [tex]24\dfrac{1}{3}[/tex] pages per hour.
Step-by-step explanation: Given that Oliver reads [tex]28\dfrac{1}{2}[/tex] pages of a book in [tex]1\dfrac{1}{6}[/tex] hours.
We are to express his speed in pages per hour.
We will be using the UNITARY method to solve the given problem.
Number of pages read by Oliver in [tex]1\dfrac{1}{6}=\dfrac{7}{6}[/tex] hours is
[tex]=28\dfrac{1}{2}=\dfrac{57}{2}.[/tex]
Therefore, the number of pages read by Oliver in 1 hour is given by
[tex]\dfrac{57}{2}\times\dfrac{6}{7}=24\dfrac{3}{7}.[/tex]
Thus, the speed of Oliver is [tex]24\dfrac{1}{3}[/tex] pages per hour.
