An electric refrigerator rated 500 W operates 6 hour/day. In addition, an air conditioner rated 1.5 kW operates 8 hours/day. What is the cost of energy to operate them for 30 days at ₹ 4 per kWh ?
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Answer:
1800 rupees
Explanation:
Given :
- An electric refrigerator rated 500 watts operates for 6 hours a day
- An air conditioner rated 1.5 Kw operates on 8 hours a day
- 4 rupees per kwh Is the cost
To find :
- Monthly bill of the house
Energy consumed by refrigerator = 500×6 = 3000 wh = 3 Kwh
Energy consumed by air conditioner = 1.5×8 = 12 Kwh
Daily consumption = 12+3 = 15 Kwh
Monthly consumption = 30×15 = 450 Kwh
Monthly bill = 4×450
Monthly bill = 1800 rupees
The cost of electricity bill is 1800 rupees
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