Answer: 1 : 725
Explanation:
Given: The height of the Sears Tower in Chicago = 1,450 feet
We know that 1 feet = 12 inches.
Therefore, the height of the Sears Tower in Chicago in inches =

The height of the model of the tower = 24 inches
Now, the ratio of the height of the model to the height of the actual Sears tower=


Hence, the ratio of the height of the model to the height of the actual Sears tower = 1 : 725