A company is producing a new product. Due to the nature of the product, the time required to produce each unit

decreases as workers become more familiar with the production procedure. It is determined that the function for the

learning process is $T(x)=2+0\mathrm{.}7(\frac{1}{x}),$ where $T(x)$ is the time, in hours, required to produce the $x$ th unit. Find the total

time required for a new worker to produce units $1$ through $5$ ; units $20$ through $25.$

The worker requires hours to produce units $1$ through $5.$

$($Round to two decimal places as needed.$)$