In a rectangular box, with length 30 inches and height and width 12 inches, an ant is located on the middle of one side 1 inch from the bottom of the box.
There is a drop of honey at the opposite side of the box, on the middle of one side, 1 inch from the top.
What is the shortest distance the ant would need to crawl to get the honey?
Here is a picture that illustrates the position of the ant and the honey.







