Question 57

Logical Reasoning Puzzles Medium

Five persons \( \mathrm{K}, \mathrm{L}, \mathrm{M}, \mathrm{N} \) and O are sitting around a dining table. K is the mother of \( \mathrm{M}, \mathrm{M} \) is actually the wife of \( \mathrm{O}, \mathrm{N} \) is the brother of \( K \) and \( L \) is the husband of \( K \) , how \(L \) is related to \( O \) ?

(A) Father
(B) Mother-in-law
(C) Brother-in-law
(D) Father-in-law
View Dynamic Solution & Explanation
Correct Solution: Option D

Step-by-step Solution:

Quick Solution

The best way to solve this blood relation puzzle is to combine the clues to build a simple family tree. The fact that they are sitting around a table is extra information not needed to find the answer.



1. Building the Family Tree

  • First, "L is the husband of K" establishes our primary married couple: L (male) <=> K (female).
  • Then, "K is the mother of M" tells us M is their child.
  • Finally, "M is actually the wife of O" tells us M (female) is married to O (male).

Putting these key relationships together gives us the following family structure:

L (Father) <=> K (Mother)              |
           M (Wife) <=> O (Husband)

(The other person, N, is the brother of K, making him M's uncle).


2. Finding the Relationship

- The question asks for the relationship of L to O.
- Looking at our family tree, L is the father of M.
- M is the wife of O.
- The father of a person's wife is their father-in-law.

Final Answer: L is O's Father-in-law.