v = 120 ,r1 = 10 ,r2 = 8 ;r3 = 4 ,r4 = 6 ,r5 = 12
i1=120/10=12
i2=120/8=15
i3=120/4=30
i4=120/6=20
15=120/12=10
it=87
(8*4)/(8+4)=32/12=2.7
RT=2.7+10+6+12=30.7

resistencia equivalente = 1.32 ohmios

    intensidad = 6.81 amperios

 3. req = 5.92 ohmios

      i = 1.52 amperios