1. A project manager is considering applying learning curve theory to his project. The project involves designing a number of software modules that are very similar. According to the cost figures that have been collected the first unit required 100 person-hours to design and test. The second unit required 90 person-hours to design and test. How many person-hours will the eighth module take to design and test?

a. 90

b. 100

c. 73

d. 172

.16151.