Question : How is M related to N ?

Statements :
I. B is the daughter of M and sister of Q.
II. N is the son of K who is B's grandfather.
  • 1I alone is sufficient while II alone is not sufficient
  • 2II alone is sufficient while I alone is not sufficient
  • 3Either I or II is sufficient
  • 4Neither I nor II is sufficient
Answer:- 1
Explanation:-

Solution:
From II, we know that N is K's son and K is B's grandfather. Thus, N is the son of B's grandfather i.e. N is either father or uncle of B.
From I, B is the daughter of M. So, M is either father or mother of B.
Clearly, the correct relationship between M and N cannot be deduced.

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