Task $2$: Short Calculations

$($a$)$ Assuming a $5400$ RPM disk, what would be the average I$/$O Time for transferring $64$ MB data?

Seek time: $5ms$

Transfer rate: $1$Gb$/$s

Controller overhead: $0\mathrm{.}1ms$

c$.$f$.\frac{1}{54}=0\mathrm{.}018$

Average I$/$O time $=$