A cubic yard of concrete is to contain 6 bags of cement and 39 gallon of water. The absolute or solid volumes of the fine and coarse aggregates required are 2.65 for the fine aggregate and 2.68 for the coarse aggregate. Determine the required weights of the cement,water,fine aggregate, and coarse aggregate per cubic yard of concrete.
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Obviously somewhere else you have been given weights or densities of the aggregate and cement.

It was not an assignment nor homework. I came across this in a book and was trying to solve it the weight of cement was given as 94ib and coarse aggregate was 19.4 cu ft water should divided by 7.5
Thank