What is the cost of running five 50W lamps and four 100W lamps for 10 hours if electrical energy costs 2 Kobo per KWh?

By: |Published on: Mar 25|Categories: Physics JAMB| 0 comments

A. N0.65
B. N0.39
C. N3.90
D. N0.13

Correct Answer:

Option D = N0.13

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