An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on?

Answer 1

The elevator starts at the 10th floor and goes down 9 floors, so it ends up on the 1st floor.
Then it goes up 19 floors, which takes it to the 20th floor.
Next, it goes down 3 floors, which takes it to the 17th floor.
Finally, it goes down 12 floors, which takes it to the 5th floor.
Therefore, the elevator ends up on the 5th floor.