Two solid conductors are made up of same material, have same length...

First, remember the relation between resistance and specific resistivity in terms of length and cross-section area, $R = ρ\dfrac{l}{A}$, given, the resistance of the conductors is the same, ${R}_{1} = {R}_{2}$ and they are made from the same material, so ${ρ}_{1} = {ρ}_{2}$

$⇒ \dfrac{1}{{A}_{1}} = \dfrac{1}{{A}_{2}}$$⇒ \dfrac{{A}_{1}}{{A}_{2}} = 1$.