Resistance is given by R = ρL/A using resistivity, length and cross-section area
R = V/I from Ohms law
Combining you have ρL/A = V/I
so ρ = VA/LI
since you were given the values of V, A, L and I it should just have been a matter of plugging in the values and see what you get.
Note that the actual Resistance value does not ever have to be calculated.