L + M means 'L is the son of M'
L - M means 'L is the mother of M'
L × M means 'L is the father of M'
L ÷ M means 'L is the wife of M'
If T + Q + A ÷ P × S - B ÷ V, then how is A related to B?
1
Maternal grandmother
2
Mother
3
Paternal grandmother
4
Granddaughter