A household uses the following electrical appliances on a typical day:
• Refrigerator: 150 W, operates 24 h
• Television: 120 W, operates 4 h
• Washing machine: 0.5 kW, operates 1.5 h
(i) Calculate the total electrical energy consumed in one day by all three appliances, expressing your answer in kilowatt-hour.
(ii) The electricity tariff is ₹5.50 per kWh. Find the monthly (30 days) cost of running these appliances.
(iii) Determine the average power drawn by the household in kilowatt over the same 30-day month.