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 Sunday | Mar 25 | Physics JAMB | 0 comments A. N0.65 B. N0.39 C. N3.90 D. N0.13 Correct Answer: Option D = N0.13 Users Also Read These:If the charge of electricity is Kwh is N4; what is…A house has ten 40W and five 100W bulbs. How much…Two similar cells are used to light two similar…Three identical lamps each power 100W are connected…A company has recently advertised an issue of one…