Answer: The speed of Oliver is \(24\dfrac{1}{3}\) pages per hour.
Step-by-step explanation: Given that Oliver reads \(28\dfrac{1}{2}\) pages of a book in \(1\dfrac{1}{6}\) 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 \(1\dfrac{1}{6}=\dfrac{7}{6}\) hours is
\(=28\dfrac{1}{2}=\dfrac{57}{2}.\)
Therefore, the number of pages read by Oliver in 1 hour is given by
\(\dfrac{57}{2}\times\dfrac{6}{7}=24\dfrac{3}{7}.\)
Thus, the speed of Oliver is \(24\dfrac{1}{3}\) pages per hour.
