We can use conservation of energy to solve this question.
The woman increases the potential energy of the box by applying her force over a certain distance.
The work that the woman does is force * distance.
The work the woman does is 25 N * 1 meters = 25 Joules.
25 Joules is the increase in potential energy of the box.
100 * distance of the box = 25
distance of the box = 0.25 meters
Therefore, for every one meter the woman pulls downward, the box rises a distance of 0.25 meters.