a man has three 100 w bulbs and five 40w light bulbs in his apartment....
a man has three 100 w bulbs and five 40w light bulbs in his apartment....
a man has three 100 w bulbs and five 40w light bulbs in his apartment. if he turn all the light on for five hours daily and the cost of electricity is 1.20naira per unit, his bills for 30days is 160. the current electricity is?
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