'A + B' means 'A is the wife of B'
'A - B' means 'A is the husband of B'
'A × B' means 'A is the brother of B'
'A ÷ B' means 'A is the mother of B'
If R + T × S - P ÷ Q + N, then which of the following statements is NOT correct?
1
Q is the mother of T
2
P is the mother of Q
3
T is the brother of S
4
R is the wife of T