Comprehension Passage
Read the following instructions carefully and answer the following question.
If 'A + B' means 'A is father of B'.
If 'A × B' means 'A' is sister of B'.
If 'A ÷ B' means 'A is wife of B'.
If 'A % B' means 'A is mother of B'.
If 'A * B' means 'A is son of B'.
What should come in place of question mark to establish 'Q is grandmother of T'?
P × Q ? R + S + T
1
%
2
+
3
÷
4
×