During the soil investigation for a new highway, the following observations

were taken at sito for the determination of unit weight by sand replacement method.

Weight of excavated soil = 452.30 g Waight of sand cylinder (W)= 10300 g

Weight of sand+cylinder after pouring the excavated hole and cone (W) = 9480 g

Weight of sand+ cylinder alter pouring for the cone only (W) 9015 g Weight of sand in calibrating can of 1000 cc after pouring from cylinder = 1580 g

Calculate the in-situ unit weight of the soil.