If X + Y means X is the father of Y;X - Y means X is the wife of YX ×...
Given:
In a certain code language,
X + Y means X is the father of Y;
X - Y means X is the wife of Y
X × Y means X is the brother of Y
X ÷ Y means X is the daughter of Y.
Let us first decode the given symbols and then draw a family tree
On checking: S - T × Y + K ÷ L
1) S - T
'S - T' means 'S is wife of T'.
2) T × Y
'T × Y' means 'T is brother of Y'.
3) Y + K
'Y + K' means 'Y is father of K'.
4) K ÷ L
'K ÷ L' means 'K is father of L'.
Thus, the following family tree can be drawn:
Clearly, the statement 'Y is brother of T' is true.
Hence, the correct answer is "Y is brother of T".