Mass will be 85 kg and weight will be 310 N.
Step-by-step explanation:
The mass is defined as the total amount of substance that is present in the body. Whereas the weight of the body is defined as the total amount of force with which earth attracts a body towards it's center.
As the mass of the body depends on only the amount of substance inside the body, so it won't change on any planet. So a body of mass 85kg in earth will remain 85kg in mars as well.
But the weight is the mass of the body multiplied by the acceleration due to gravity. The acceleration due to gravity in earth is 0.8 m/s2. As gravity is 0.377 times in mars, so its 0.3016 m/s2. So the weights of the body will be 310 N in the mars.