Calculate the electricity bill amount for a month of 30days if 4 bulbs of 50W for 6 hours 3 tubelights of 40W for 8 hours a tv of 100W for 6 hours a refrigerator of 300W for 24hours are used.the cost per unit is Rs.2.50
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rs.24.9 will be the bill of the appliances used
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Answer:
4 bulbs of 50 W for 6 hrs
So, total energy consumed by bulbs for 1 day is 4 × 6hrs × 0.05kw
=1.2kwh
Energy consumed by tube lights =3 × 0.04kw × 8hrs
=0.96kwh
Energy consumed by the TV= 0.1kw × 6hrs
=0.6 kWh
Energy consumed by the refrigerator=0.3kw × 24hrs
=7.2kwh
Total energy consumed by all the appliances is 1.2+0.96+0.6+7.2kwh
=9.96kwh of energy is consumed per day.
Energy consumed for 30 days= 9.96×30
=298.8 kWh
Cost of 1 unit (1 kwh) is ₹2.5
So, cost of 298.8kwh will be 298.8×2.5
₹747 will be the electricity bill's amount for 30 days.
Explanation:
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