General Dynamics (an aerospace and defense corporation with its headquarter located in Fairfax County) makes communication devices for military contracts . The company just completed two contracts (with the same type of device ). The navy contract was 4, 300 devices and took 20 workers two weeks to complete . The army contract was for 8,300 devices that were produced by 25 workers in three weeks . Assume 40 working hours per week per worker . On which contract were the workers more productive?

The army contract

Explanation:

Productivity can be measured by output per hour. i.e.

dividing the total output by hours worked.

productivity = output/hours worked

The navy contract

output =4,300

the hours worked = 20 workers working for two weeks, each week has 40 hours

Each worker worked 40 x 2 hours = 80 hours

20 workers worked for

80 hrs x 20

= 1600 hours

Productivity = 4,300/1600

=2.6875

For the military contract

output = 8300

hours worked

=  25 workers in three weeks, each week 40 hours

each worker worked, 40 x 3 hours = 120 hours

Twenty-five workers:

=25 x  120 hours

= 3000 hours

Productivity = 8300/3000

=2.766

The productivity for the military contract (2.766) was higher than for the navy contrac t(2.6875).

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