Question
The question given below consists of two statements
numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read all the statements and answer the question. There are seven members, D, E, F, G, H, I and J, in a family of three generations. How is H related to J? Statement I: D, who has only one child, is the grandmother of F. F is a male. The mother of F is the only child of H. H is the grandfather of G. G is a female. J is the husband of I. Neither J nor I belongs to the second generation. F has only one sister. E, who has two sons, is mother-in-law of I. Statement II: There are only two members in the first generation. J is the son of E. E is the only child of H. H is married to D. D has only two grandsons. I is the sister in law of F. F belongs to the third generation. G is the sister of F.Solution
From statement I, D, who has only one child, is the grandmother of F. F is a male. The mother of F is the only child of H. H is the grandfather of G. G is a female. J is the husband of I. Neither J nor I belongs to the 2nd generation. F has only one sister. E, who has two sons, is mother-in-law of I. The following family tree can be drawn from the given arrangement, 
H is grandfather of J. From statement II, There are only two members in the first generation. J is the son of E. E is the only child of H. H is married to D. D has only two grandsons. I is the sister in law of F. F belongs to the third generation. G is the sister of F. The following family tree can be drawn from the given statements, 
Here as the gender of H cannot be determined, so, H is either Grandfather or grandmother of J. Therefore, data in statement I alone is sufficient to answer the question, while data in statement II alone is not sufficient to answer the question.
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