Question

There is an elevator in a building that is 450 feet tall with 30 stories

Answer 1

2 minutes

Explanation:

Because it takes 30 seconds to get from 20th floor to 15th floor which is 5 floors, which means that it takes 30 seconds for 5 floors. 5 times 4= 20

which makes 20 floors, 4 times 30 seconds= 120 seconds or 2 minutes.