dibantu ya kakak mau dikumpulin besok

Jawabannya D.
caranya:
1 windu =8 th
x-y= 24 th

x-6 +y-6 = 108 th
x+y-12 = 108 th
x+y = 120 th

x-y-24 = x+y-120
-2y= -96
y= 48 th
x= 72 th

usia 11 th mendatang
x=72+11 = 83 th
y=48+11= 59 th