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18 August, 10:57

Average cost of of 7cent per kilowatt hour what would be the cost of burning a 40 W bulb for 8 hours per night for 14 nights show your calculations

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  1. 18 August, 11:22
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    40 Watts @ 8hrs x 14 = 4480/1000 = 4.48

    4.48 * 0.07 = 0.3136 cents.
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