The natural total unit weight of a sandy stratum is 13.98kN/m³ and has a water content of 8%. For determining of relative density, dried sand from the was filled loosely into a 0.03m³ mould and vibrated to give a maximum density. The loose weight of the sample in the mould was 47.99kg, and the dense weight was 62.01kg. If Gs = 2.66, find the following:

(i) void ratio
(ii) relative density
(iii) dry unit weight
(iv) maximum dry unit weight
(v) minimum dry unit weight