Respuesta:
160/3 = 53.33
Explicación:
Claculamos la R total
1/R = 1/6 + 1/3 + 1/4
1/R = (1/6)*(4/4)+(1/3)(8/8)+(1/4)(6/6)
1/R = 4/24 + 8/24 + 6/24
1/R = 18/24
R = 24/18, simplificando R = 4/3
Aplicando fórmula V = IR
V = 40 * (4/3) = 160/3
Si es en decimal 53,33