N0.65
N0.13
N3.90
N39.00
N234.00
Correct answer is B
PT = (5 x 50) + (100 x 4) = 650watts Energy(kWhr) = 650 x 10-3 x 10 = 6.5 kWhr 1kWhr cost 2 kobo ; 6.5 kWhr will cost \(\frac{2 \times 6.5}{1}\) = 13 kobo
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