A household uses the following appliances in one day:
• A table lamp of 60 W for 6 h
• A mixer of 500 W for 0.5 h
• A geyser of 1500 W for 0.25 h
(i) Arrange the three appliances in descending order of energy consumed during the day.
(ii) Calculate the total electrical energy consumed by all three appliances in kWh.