Answer:
Potential energy is

Step-by-step explanation:
The potential energy depends on the mass, the acceleration of gravity g and the height at which the object or person is.
Potential energy

In this case we would need to know the exact mass of the hiker in order to calculate the potential energy.
But we know the values of g and h


So, the potential energy

m is the mass of the hiker, wich is not in the description of the problem.