tolong di jawab dengan cara!

Rumus: W (Energi) = n x P x t
(n: banyaknya alat)

- Lampu pijar
W = 5 x 20 x 12 x 30 hari
W = 36000 Wh = 36 kWh

- Lampu neon (TL)
W = 6 x 10 x 10 x 30 hari
W = 18000 Wh = 18 kWh

- TV
W = 1 x 80 x 10 x 30
W = 24000 Wh = 24 kWh

Jumlah semua energi:
W total = W lampu pijar + W lampu neon + W tv
W total = 36 + 18 + 24
W total = 78 kWh