Pointing out to a lady, a girl said, " She is the daughter in law of the grandmother of my father's only son." How is the lady related to the girl ?
A
Sister-in-law
B
Mother
C
Aunt
D
Mother-in-law
E
Cousin
Correct Answer: Mother
Girl's father's only son---Girl's brother; Grand mother of girl's brother---Girls grand mother; Daughter-in-law of girl's grand mother---Girl's mother.