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In a building there are 10 bulbs each of power 60 W operate for 10 hrs per day and 5 fans each consumes 200W operate for 6 hrs per day. If the supply voltage is 220 V in a month of 30 days electric energy consumed in kilowatt hour is

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Detailed Solution

energy consumed per day

$(10 \times 60 \times 10 + 5 \times 200 \times 6) watt hour$

energy consumed per month

$\frac{(10 \times 60 \times 10 + 5 \times 200 \times 6) \times 30}{1000} kwh$

$= 36 kwh$

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