question_answer

A family consists of seven members I, J, K, L, M, N, There are three married couples. J is an engineer and father of M. N is grandfather of M and is a contractor. K is daughter-in-law of L who is a nurse by occupation, O is M?s uncle who is a professor. There is one student, one housewife and one doctor in the family. The student is unmarried and K is the sister-in-law of J.

Which of the following are married couples?

A) \[\text{IN},\text{ JK},\text{ NL}\]     

B)         \[\text{OM},\text{ IJ},\text{ NL}\]

C) \[\text{IJ},\text{ KO},\text{NL}\]       

D)         None of these

Correct Answer: C

Solution :

  From, the question, the family tree can be drawn as shown below: (i) L is married to K. So, either A, B, C are sisters and married to K or two sisters married to M. (ii) D and E can be sisters of I and married to or brothers of J and married to I.