In 2011 Buckeye Brewing produced 1,000 bottles of ginger ale each day. It employed 10 workers each working 8 hours a day. In 2012 it produced 960 bottles of ginger ale each day employing 8 workers who worked 8 hours each day. Productivity at Buckeye Brewing

a, increased by 20%

b, increased by 16.67%.

c, decreased by 1.67%.

d, decreased by 40%.

The answer is: A) increased by 20%

Explanation:

Buckeye's productivity for 2011 was:

productivity = 1,000 / 10 workers = 100 bottles of ginger ale per worker

Buckeye's productivity for 2012 was:

productivity = 960 / 8 workers = 120 bottles of ginger ale per worker

The difference between the productivity level of 2012 and 2011 is an increase of 20% ( = (120 / 100) x 100)