A power station has to meet the following daily load: load A, 50 kW between 10 a.m. and 6 p.m.; load B, 30 kW between 6 p.m. and 10 p.m.; load C, 20 kW between 4 p.m. and 10 a.m. (next day). Determine (a) the diversity factor, (b) the units generated per day (kWh) and (c) the daily load factor (in %).