operations management

attached plus:

Example 6 (Forgetting effect)

Given:

a) Learning rate is 80%. 

b) Production was interrupted for two months after unit 80.

c) Production time at 80th unit was 30 hours.

Find:

a) The production time of 81st unit.

b) The production time of 110th unit.

c) The time of producing the next batch of 30 units (81 through 110).