Dengan caranya ya pliss makasiii

diket :
R1 = 15 ohm
R2=10 ohm
R3= 5 ohm
rangk. seri paralel
I = 3 A
dit : Teg.pada rangkaian
jwb :
#hambatan total seri
Rs = R1+R2
Rs =15 +10
Rs = 25 ohm
#hambatan pengganti
1/Rp = 1/Rs + 1/R3
1/Rp =1/25+1/5
1/Rp = 1/25+5/25
1/Rp = 6/25
Rp = 25 /6
Rp = 4,166 ohm
#Tegangan
V = I . R
V = 3 . 4,166
V = 12,498 (12,5 V )
jadi jawab yg( c. 12,5 v )