calculate the electricity bill amount if 10 bulbs of 40w for 5hrs, 6 tube lights of 60w for 5hrs, a tv of 150w for 10hrs, a washing machine of 600w for 5hrs used per day. the cost per unit is Rs.2.25
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Answer:
Formula = kWh = [Power*Hours]/1000
No. of Bulbs = 10
Power = 40W
Time = 5hrs
Total units = [40*5]/1000
= 0.2 kWh
No. of tube lights = 6
Power = 60W
Time = 5 hrs
Total Units = [60*5]/1000
= 0.3 kWh
No. of TV = 1
Power = 150W
Time = 10 hrs
Total units = [150*10]/1000
= 1.5 kWh
No. of Washing Machine = 1
Power = 600W
Time = 5 hrs
Total units = [600*5]/1000
= 3 kWh
Total units in a day = [0.2+0.3+1.5+3] kWh
= 5 kWh
Total units in a month = [5*30] kWh
= 150 kWh
Cost of per unit a month = Rs. 2.25
Electric Bill = Rs. 2.25*150
= Rs. 337.5
I hope this helps.
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