Winki,
Sea la herencia H
1ro - 45% = (45/100)H = (9/20)H
2do - 60% de 9/20 = (9/20)(3/5) = (27/100)H
3ro - (1/3)(27/100) = 27/300 = (9/100)H
Saldo = 38000
(45/100 + 27/100 + 9/100)H + 38000 = H
(81/100)H + 38000 = H
todo x 100
81H + 3800000 = 100H
3800000 = (100 - 81)H
= 19H
H = 3800000/19
= 200.000
La herencia fue S/. 200.000
alternativa D)