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      Question

      How many female members are there in family of ten

      members? Statement I: Z is only son of Y, who is son-in-law of B. W is only daughter of C. L is sister-in-law of P. B is brother-in-law of A, who is sister of C. X is brother of W. L is married to B. W is mother of P and is mother-in- law of L. Only three married couples are there in family. A and P unmarried members of the family. Statement II: L is son of Z and is son-in-law of X. W is only son of C, who is married to B. R is only son of Y. B is sister of A. P and R are siblings. L is brother-in-law of R. A and R are unmarried member of family. Y is brother-in-law of W. Each of the questions below consists of a question and 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:
      A If the data in Statement I alone is sufficient to answer the question, while the data in Statement II alone is not sufficient to answer the question Correct Answer Incorrect Answer
      B If the data in Statement II alone is sufficient to answer the question, while the data in Statement I alone is not sufficient to answer the question. Correct Answer Incorrect Answer
      C If the data either in Statement I alone or in Statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
      D If the data in both the Statements I and II together are not sufficient to answer the question. Correct Answer Incorrect Answer
      E If the data in both the Statements I and II together are necessary to answer the question. Correct Answer Incorrect Answer

      Solution

      We have:  X is brother of W and W is only daughter of C.  B is brother-in-law of A, who is sister of C, as A is unmarried member of family, that means B is married to C. Based on above given information we have: Clearly, only five female member are there in the family. Hence, statement I is alone sufficient. From Statement II:We have:  L is son of Z and is son-in-law of X. L is brother-in-law of R, as R is unmarried member of the family. P and R are siblings. R is only son of Y, that means X is married to Y and P is married to L. Y is brother-in-law of W.  W is only son of C, who is married to B, that means W is brother of X. B is sister of A, that means C is father of W. Based on above given information we have: Clearly, gender of A and Z is not known. Hence, statement II is not sufficient.

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