Question
Compact fluorescent lamps (CFLs) have become more popular in recent years, but do they make financial sense? Suppose a typical 60-watt incandescent light bulb costs
Compact fluorescent lamps (CFLs) have become more popular in recent years, but do they make financial sense? Suppose a typical 60-watt incandescent light bulb costs $0.65 and lasts 1,040 hours. A 15-watt CFL, which provides the same light, costs $3.50 and lasts for 13,000 hours. Assume a kilowatt-hour of electricity costs $0.103. A kilowatt-hour is 1,000 watts for 1 hour. Required: If you require a 10 percent return and use a light fixture 520 hours per year, what is the equivalent annual cost of each light bulb? (Do not include the dollar signs ($). Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places. (e.g., 32.16)) EAC Compact fluorescent lamps $ _____ 60-watt incandescent light bulb $______
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