Ans is
son,Father and grandfather
solution:
Son=x
Father=y
Grandfather=Z
so,
X=Son
Y=son of Z
so x and Y are two sons...............(i)
Y=father of X
Z=father of Y
so Y and Z are two fathers.........(ii)
ans
Total amount $33,333 is to be equally divided in X,Y and Z ie $11,111...{into two fathers and two sons from (ii)&(i)}