Post-UTME Physics 2011 Objective — Question 1
Question 1 of 10 from the Post-UTME Screening (Post-UTME) Physics 2011 Objective paper, with the correct answer and a full explanation.
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A household refrigerator is rated 200 watts. If electricity costs 5k per kWh, what is the cost of operating it for 20 days?
- A. N4.80Correct
- B. N48.00
- C. N480.00
- D. N4800.00
Explanation
Energy=200W×24hr×20days=96kWh. Cost=96×5kobo=480kobo=N4.80.
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