The Management of a Factory Finds That the Maximum Number $N = 30 ( 1 -$

Multiple Choice

The management of a factory finds that the maximum number of units a worker can produce in a day is 30. The learning curve for the number of units N produced per day after a new employee has worked days is modeled by $N = 30 ( 1 -$ ) After 20 days on the job, a worker is producing 19 units in a day. How many days should pass before this worker is producing 25 units per day?

A) about 36 days.
B) about 45 days.
C) about 30 days.
D) about 10 days.