30 trucks are loaded with 40t each of wet containing 30% moisture. En-route to the smelter it is reported a rain fall of 35mm of which 20% has evaporated due to high temperature reported in the area after rain. A second rain fall equivalent to X% of the first moisture before the first rainfall has been reported. The trucks are 3m width and 5m long. 2.1 Establish the equation of water to be removed if 2%