Tolong dong kak caranya. Makasi

diket :
R1 = 3 ohm
R2 = 6 ohm
R3 =5 ohm
dit : total hambatan
jwb :
# hambatan pengganti paralel
1/Rp = 1/R1+1/R2
1/Rp = 1/3+1/6
1/Rp = 2/6 +1/6
1/Rp = 3/6
Ro = 6/3 = 2 ohm
# hambatan total
Rs = Rp +R3
Rs = 2 + 5
Rs= 7 ohm