A skyscraper contains 80 floors, with adjacent floors 10 feet apart. An elevator in the skyscraper is ascending at a rate of 5 feet per second. How long will it take the elevator to ascend from the 4th floor to the 28th floor?

1 Answer
Aug 7, 2017

#48# sec.

Explanation:

The elevator must travel 28-4 floors or 24 floors.

Each floor is 10 feet so that is 240 feet.

The elevator travels 5 ft/sec, so to find the time to travel the 240 feet, divide.

#240-:5=48# sec.