Answer:
The actual height of 1 story is 15 feet.
Explanation:
The given scale is

We know the 10 story building has a height of 12 inches, but we need the actual height of 1, that is, the height of 1 story in feet.
Let's divide to find the number of inches per story

There are 1.2 inches per story.
Now, we know
, let's use the rule of three

Therefore, the actual height of 1 story is 15 feet.