Question: A stream of fluid feeds 1.05(103) kg/h of a mixture containing 39.8% ethane, 31.2% propane, and 29% butane into a distiller. Three streams are drawn off: Stream A is 94.0% ethane, 4.20% propane, the rest butane; Stream B is 91.8% propane, 1.20% ethane, the rest butane; and Stream C is 94.2% butane and 5.8% propane. What is the rate of production of each of the streams?