Pointing to Ajay, Radha said, “His father is the only son of my grandfather”. How is Radha Related to Ajay?
Answer: B
When Radha’s Grandfather’s only son is Ajay’s father, then Ajay’s father is also the father of Radha. So Radha is Ajay’s sister. Hence, answer is (2) Sister.
We know, ‘Only son of my grandfather’ means ‘my father’. “His father is the only son of my grandfather” thus becomes “His father is my father”. So Radha is Ajay’s sister. Hence, answer is (2) Sister.