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In an office a tube light of 40W,a fan of 75W, and a cooler of 150W have been installed. If all these appliances are used for 8 hours a day, calculate the

energy consumed per day in commercial unit of energy.


First add these = 75 + 40+150= 265watts. then multiply = no. of days *wattsconsumed*time = 1*265*8=2120kwh(kilowatt hour)
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