Each of the questions below consists of a question and two
statements numbered 1 and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and—
a: if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
b: if the data in statement II alone are sufficient to answer the question. while the dam in statement I alone are not sufficient to answer the question.
c: if the data either in statement I alone or in statement II alone are sufficient to answer the question.
d: if the data given in both the statements 1 and 11 together are not sufficient to answer the question, and
e: if the data in both the statements I and II together are necessary to answer the question.
Is D the mother of S ?
I. L is the husband of D. L has only three children.
II.N is the brother of S and P. P is the daughter of L
Clearly, I alone and II alone are not sufficient since there is no data about S and D in I & II respectively.
I & II : L is the husband of D, => D is female and they have 3 children.
Since P is the daughter of L and N is the brother of S and P
$$\therefore$$ N, S and P are siblings and are children of L and D.
Thus, D is the mother of S.
Thus, I & II together are sufficient.
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