October 2018 2 49 Report
Dalam sebuah rumah terdapat 4 lampu 20 w, 2 lampu 10 w, 3 lampu 40 w yang menyala 5 jam setiap hari..Jika harga listrik per kwh Rp500,00, maka biaya yang harus di bayar dalam 1 bulan (30 hari) adalah....
a.Rp 5.625,00
b.Rp 7.500,00
c.Rp 12.750,00
d.Rp 16.500,00
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