A. 14.4 naira
B. 12.5 naira
C. 7.2 naira
D. 2.0 naira
Correct Answer: Option C
C. 7.2 naira
Explanation
Cost = P(Kwh) x Cost per KW
= {(60×24)/1000}×N5=N7.2
![Five 80-W and three 100W are run for 8 hours. If the cost of energy is N5.00 per unit, calculate the cost of running the lamp. [1 unit = 1 kWh]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Five 80-W and three 100W are run for 8 hours. If the cost of energy is N5.00 per unit, calculate the cost of running the lamp. [1 unit = 1 kWh]")
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