Question

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?

Answer 1

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.

Answer 2

Each floor is 10 feet so that is 240

since the elevator travels 5 ft/sec you will need to find the time to travel the 240 feet

so decide 240 by 5 and you get 48 feet :)