A soil sample has 28 g of soil solids, 10 cu cm of voids, 9 g of water and specific gravity of soil grains of 2.7; consider the following statements in this regard:

1.   The water content is 9/28 x 100%

2.   The void ratio is 10 x 2.7/28

3.   Degree of saturation is 9 x 100/(10x2.7)

4.   The porosity is 10 x 2.7/(28+10x2.7)

of these statements