Recall the Application about the government of Mexico City repainting highway lane lines to transform a 4-lane highway into a 6-lane highway to answer the following question(s).
-When the government converted the highway from 4 lanes into 6 lanes, they claimed the capacity had increased by 50 percent. When the government switched the highway back from 6 lanes to 4 lanes, they claimed the capacity had been decreased by 33 percent. Had the government used the midpoint method, the percentage increase would have been ________ percent and the percentage decrease would have been ________ percent.

Question

Quizplus · Accepted Answer

Using the midpoint method, the percentage increase would be calculated as follows: 
((6-4)/((6+4)/2)) x 100 = 40% 
And the percentage decrease would be calculated as: 
((4-6)/((4+6)/2)) x 100 = 40% 
Therefore, the best choice is C, where both percentage increase and decrease would be 40%.

Recall the Application About the Government of Mexico City Repainting