A household uses the following electric appliance a. Refrigerator of rating 400w for 10hrs. b. Two electric fans of rating 80w each for 12hrs each day. c. 6 electric bulbs of rating 18w each for 6hrs each day. Calculate the electric bill of the house for the month of June if the cost of per unit electrical energy is₹3.0
Calculate the total cost of running following electrical devices in the month of September, if the rate of unit of electricity is rupees 6
1)electric heater of 100W for 5hrs daily
2)electric refrigerator of 400W for 10hrs daily