The resistance R of a conductor depends on its resistivity ρ, length l and cross-sectional area A. Thus,R=ρAl​From the given comparison of resistances, we cannot derive the correct relation between the resistances. We also need to know the cross-sectional areas and the lengths of both the conductors before concluding about their resistivities. Only then can the relation between the resistivities be found.The information is not sufficient to find the relation between ρA and ρB.