Answer:
6th floor
Explanation:
Starting on the ground floor, we will reference this point as the 0th floor. From there she goes:
down 2 floors (0 - 2) | -2 |
up 5 floors (-2 + 5) | 3 |
down 1 floor (3 - 1) | 2 |
up 3 floors (2 + 3) | 5 |
down 5 floors (5 - 5) | 0 |
and up 6 floors (0 + 6) | 6 |
Therefore... in the end she lands on the 6th floor