A Defence Contractor Has Just Started Producing Engines for a New

Multiple Choice

A defence contractor has just started producing engines for a new government contract. The first engine took 800 hours to produce. If the learning curve is 80%, how long will it take to produce the first 20 engines? (Use at least three decimals in the exponent if you use the logarithmic approach, or Use Table E.3 (in the text) cumulative coefficient.)

A) less than or equal to 1000 hours
B) from 1000 to 8000 hours
C) from 8000 to 8500 hours
D) from 8500 to 10000 hours
E) 10,000 or more hours