Chapter 4.3, Problem 68E

Industrial Learning Curve

A company is producing a new product, and the time required to produce each unit decreases as workers gain experience. It is determined that

$T\left(x\right)=2+0.3\left(\frac{1}{x}\right)$,

Where $T\left(x\right)$ is the time, in hours, required to produce the $x\text{th}$

unit. Use this information for Exercises 67 and 68.

Find the total required for a worker to produce units 1 through 20; units 20 through 40.