The floor system of a restaurant consists of a 6-inch-thick…

The floor system of a restaurant consists of a 6-inch-thick reinforced concrete slab resting on three steel floor beams, which are in turn supported by two steel girders. The areas of cross section of the floor beams and the girders are 19.6 in.2 and 33.3 in.2, respectively. Determine the live load acting on beam EF.