It takes the Blacksburg shipyard twenty weeks with 200 workers to build an airplane. Material costs are $15 million and overhead costs are $1.5 million. Workers cost $35 per hour including benefits and work 40 hours per week. Each airplane sells for $50 million. What is the multifactor productivity ratio?

less than 1.0

greater than 1.0 but less than or equal to 2.0

greater than 2.0 but less than or equal to 3.0

greater than 3.0