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Verified answer
4 lampu, @25 watt , jadi keempatnya memiliki daya 100 watttv 100 watt
kipas 50 watt
P total = (100 + 100 + 50) watt
= 250 watt
= 0,25 kwatt
t = 10 jam
W = P.t
W = 0,25 kwatt . 10 jam
W = 2,5 kwh
Biaya per hari
= Rp 250/kwh . 2,5 kwh
= Rp 625
Biaya sebulan
= Rp 625 . 30
= Rp 18750