Question

Q.1 A residential flat has the following average electrical consumptions per day: i) 4 tube lights of 40 watts working for 5 hours per day; ii) 2 filament lamps of 60 watts working for 8 hours per day; iii) 1 water heater rated 2kW working 1 hour per day; iv) 1 water pump of 0.5 kW rating working for 3 hours per day. Calculate the cost of energy per month if 1 unit ( 1 kWh of energy) costs 4.50rs. ​

Answer 1

Answer is given in the picture.

Hope that helps.