When wet sand (m.c.=6%) is used, it contains free water, therefore, it is equal to 5.5/100.5. It is like getting the 10% of total wt. of W=127 lb. A common mistake is to calculate wt. of water = 10% of 127=12.7lb. Wrong. Since the water content is 10%, distribute the total wt. in 100:10...