How Much Money Would You Save Per Hour by Replacing

question 64

Multiple Choice

How much money would you save per hour by replacing a 100-watt incandescent light bulb with an equally bright 20-watt fluorescent bulb? Assume the cost for electricity to be 15 cents per kilowatt-hour.

• A)1.5 cents per hour
• B)1.2 cents per hour
• C)0.3 cent per hour
• D)It's not possible to save only a fraction of a cent.

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