Answer: Option A
The father of the boy's uncle -> the grandfather of the boy and daughter of the grandfather -> sister of father.
Answer: Option D
Mother's grandson -> Son; Son's wife -> Daughter-in-law
Answer: Option E
Only daughter of Kamal's mother -> Kamal's sister.
So, Ravi's mother is Kamal's sister or Kamal is the brother of Ravi's mother.
i.e. Ravi's mathernal uncle.
Neha is the daughter of Sarita's son , and the girl is Neha's mother.
So, the girl is Sarita's son's wife i.e. Sarita is the girl's mother-in-law.
Answer: Option B
Only son of grandfather -> Father;
Son of father -> Brother.
So the boy is Veena's brother.
Only child of Naman's grandmother -> Naman's father/mother.
Daughter of Naman's father/mother -> Naman's sister.
Namrata's father's only son -> Namrata's brother.
So, Ketan is the son of Namrata,s brother.
Thus, Ketan's mother is the wife of Namrata's brother.
i.e. Namrata's sister-in-law.
Lady's mother's husband -> Lady's father;
Lady's father's sister -> Lady's aunt.
So, lady's aunt is man's aunt and therefore lady is man's sister.
Monika's father's only daughter_ Monika.
So, Reena is Monika's daughter, i.e. Monika is Reena's mother.
Answer: Option C
Arun's son's wife's daughter _ Arun's son's daughter;
Mother of daughter of Arun's son _ Wife of Arun's son.