Assuming the earth to be a sphere of uniform mass density, the weight of a body at a depth d=R/2 from the surface of earth, if its weight on the…

Assuming the earth to be a sphere of uniform mass density, the weight of a body at a depth $\displaystyle d=\frac{R}{2}$ from the surface of earth, if its weight on the surface of earth is $\displaystyle 200$ N , will be : (Given $\displaystyle \mathrm{R}=$ radius of earth)