A household uses an electric geyser of 1000w for 30 minutes a day and a microwave oven of 2000w for 2 hours a day. What will be electric bill for one month at Rs 4 per unit?
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Answer:
The Electric Bill at the end of a month will be Rs. 5400.
Explanation:
Electric Geyser = 1000W
Time = 30 mins or, 0.5 hr
No. of units = (Wattage*hours)/100
= (1000*0.5)/100 kWh
= 5 kWh
No. of units in a month = 5*30 kWh
= 150 kWh
Microwave Oven = 2000W
Time = 2 hrs
No. of units = (Wattage*hours)/100
= (2000*2)/100 kWh
= 40 kWh
No. of units in a month = 40*30 kWh
= 1200 kWh
Total units = (1200+150) kWh
= 1350 kWh
Cost of 1 unit = Rs. 4
Cost of 1350 units = Rs. (1350*4)
= Rs. 5400
Hope this helps.
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