Question: Andrew Foods, Inc., produces a sweet syrup made from com syrup and beet syrup mixed with pure sugar. For each batch, 680 lbm of beet syrup (13% sugar, the remainder water) and 650 lbm of corn syrup (8.0% sugar, the remainder water) are mixed with pure sugar and 350 lbm of water is boiled off. Determine the amount of pure sugar that needs to be added to produce an 18% sugar content in the final product.