pake cara ya, ditunggu yah!!!

kipas angin = 7,2 kWh = 7,2 x 1000 = 7200 Watt
= 7200/30 = 240 / hari
240/ 10 = 24 watt

lampu pijar = 9 kWh = 9 x 1000 = 9000 Watt
= 9000:30 = 300 / hari
300/ 12 = 25 watt

tv = 12 kWh = 12 x 1000 = 12000 watt
12000/30 = 400 / hari
400/4 = 100 watt

B.