In a certain code language,
‘A + B’ means ‘A is the son of B’;
‘A – B’ means ‘A is the daughter of B’;
‘A × B’ means ‘A is the husband of B’ and
‘A ÷ B’ means ‘A is the sister of B’.
Based on the above, how is P related to S if ‘P − Q × R ÷ S + T’?
1
Mother’s mother
2
Sister’s daughter
3
Mother’s sister
4
Father’s sister