no 16 dong, dengan cara yah.

1/Rp = 1/12 + 1/20 + 1/30
1/Rp = (50 + 30 + 20)/600
1/Rp = 100/600 = 1/6
Rp = 6 Ω

I.total = 12 v /(6 Ω + 2 Ω)
I.total = 12 / 8
I.total = 1,5 A

V.Rp = I × Rp
V.Rp = 1,5 A × 6 Ω
V.Rp = 9 v

I.1 = 9 v / 12 Ω = 0,75 A
I.2 = 9 v / 20 Ω = 0,45 A
I.3 = 9 v / 30 Ω = 0,3 A

(C)

jawaban ada difoto......
C.