Lalita said to Tina, “You are the daughter-in-law of the grandmother of my father’s only son.” How is Lalita related to Tina?
Answer: D
My father’s only son’ is my (Lalita’s) brother. Tina is daughter-in-law of grandmother of (Lalita’s) brother. Tina thus can be their mother (wife of grandmother’s only son). However as it is not mentioned that the grandmother has only one son, Tina can be wife of grandmother’s other son i.e. Tina could also be their aunt. Hence, answer is (4) Indeterminable.