October 2018 1 55 Report
Keluarga pak atim menggunakan 4buah lampi 25 watt.TV 100 watt,dan kipas angin 50 watt. setiap harinya peralatan tersebut digunakan selama 10 jam.jika harga listrik Rp 250,00/kWh,tentukan biaya listik yang harus dibayar pak atim setiap bulannya
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