Its desired to produce 5 cubic yards of cencrete with a ratio of 1:1.8:3.5 of cement, snd, and gravel what are the required amounts of components if 5.5 gallons of water per sack of cement is to be used? Assume the free miosture contents of the sand and gravel are 3% and 0.75% respectivley. The specific gravities of cement, sand, and gravel are 3.15,2.65,and 2.65 respectivley give the answer for cement in sacks, the sand, and gravel on pounds and the water in gallons.