The two balanced loads in the figure are connected in parallel to a 400 V (line), 50 Hz, three-phase supply. Load A is star-connected and Load B is delta-connected, with the per-phase values shown. Determine (a) the total active power drawn from the supply (answer in kW), (b) the overall power factor of the supply, and (c) the supply line current I_{L} (answer in A).