Answer
\begin{array}{ll}{\text { }} & {\text { Best Case }} & {\text { Average Case }} & {\text { Worst Case }} \\ {\text { Seek time }} & {0.0} & {0.0} & {0.0} \\ {\text { Latency }} & {0.0} & {0.5 \times 25=12.5} & {1 \times 25=25.0} \\ {\text { Transfer }} & {1.25} & {1.25} & {1.25} \\ {\text { Total }} & {1.25} & {13.75} & {26.25}\end{array}
Work Step by Step
\begin{array}{ll}{\text { }} & {\text { Best Case }} & {\text { Average Case }} & {\text { Worst Case }} \\ {\text { Seek time }} & {0.0} & {0.0} & {0.0} \\ {\text { Latency }} & {0.0} & {0.5 \times 25=12.5} & {1 \times 25=25.0} \\ {\text { Transfer }} & {1.25} & {1.25} & {1.25} \\ {\text { Total }} & {1.25} & {13.75} & {26.25}\end{array}
