If the mass of earth increased, with no change in radius, your weight would also increase
Step-by-step explanation:
The equation for weight a person related to the radius of earth is:

Where,
G = Gravitational constant
M = Mass of earth
m = Mass of the body
r = radius of earth
So we get that,
Mass of the earth is directly proportional to the weight of the body.
Thus when the mass of earth is decreased, the weight of the body will aslo increase.