Question

An elevator begins on the ground floor of a hotel. It travels up 18 floors, down 9 floors, up 5 floors, and down 3 floors. What integer represents the change in the number of floors it must now make in order to return to the ground floor?

Answer 1

Explanation:

+18-9+5-3 = 11

It's on the eleventh floor and must go down 11 floors to return to the ground floor.