'B + D' means 'B is the father-in-law of D'. 'B & D' means 'B is the brother of D'. 'B # D' means 'B is the wife of D'. 'B $ D' means 'B is the son of D'. 'B @ D' means 'B is the mother of D'. If O is the only child of his parents, then which of the given options is true in reference to the following expression?
M # L & N @ O $ P + R
R is the wife of O.
Understanding Blood Relations Puzzles
Blood relation questions test your ability to decode complex relationships given through symbols or coded language. The key is to break down the expression and build a family tree or chart to visualize the connections.
Decoding the Relationships
We are given the following codes for relationships:
- 'B + D' means 'B is the father-in-law of D'.
- 'B & D' means 'B is the brother of D'.
- 'B # D' means 'B is the wife of D'.
- 'B $ D' means 'B is the son of D'.
- 'B @ D' means 'B is the mother of D'.
The expression we need to analyze is: M # L & N @ O $ P + R
Let's break down the expression step by step from left to right:
- M # L: M is the wife of L. This means L is the husband of M. (Gender: M-Female, L-Male)
- L & N: L is the brother of N. (Gender: L-Male, N-Can be male or female)
- N @ O: N is the mother of O. (Gender: N-Female, O-Can be male or female)
- O $ P: O is the son of P. (Gender: O-Male, P-Can be male or female)
- P + R: P is the father-in-law of R. (Gender: P-Male, R-Can be male or female)
Constructing the Family Tree
Let's combine these relationships and deduce the full structure. We know O is the son of P and N is the mother of O. This means N and P are the parents of O. Since N is the mother, P must be the father. The question also states that O is the only child of his parents (N and P).
P is the father of O. P is also the father-in-law of R. For P to be the father-in-law of R, R must be married to P's child. P's only child is O. Therefore, R must be married to O.
Since O is the son (male), his spouse R must be female (his wife).
We also know L is the brother of N, and M is L's wife.
Here's a summary of the family structure:
| Person | Relationship | Gender |
|---|---|---|
| P | Father of O, Husband of N, Father-in-law of R | Male |
| N | Mother of O, Wife of P, Sister of L | Female |
| O | Son of N & P, Only child, Husband of R | Male |
| R | Wife of O, Daughter-in-law of N & P | Female |
| L | Brother of N, Brother-in-law of P, Husband of M | Male |
| M | Wife of L, Sister-in-law of N | Female |
Analyzing the Options
Now let's check each option based on our derived family structure:
-
R is the wife of O.
From our deduction, P is the father-in-law of R, and O is P's only child (a son). This means R is married to O. Since O is male, R must be the wife of O. This statement is True.
-
L and P are siblings.
L is the brother of N. N is the wife of P. This makes L the brother-in-law of P (N's brother). They are not siblings. This statement is False.
-
N has only one son and one daughter
The question states O is the only child of his parents (N and P). O is a son. Therefore, N has only one child, who is a son. N has one son and zero daughters. This statement is False.
-
N is the mother of R.
N is the mother of O. R is the wife of O. This makes N the mother-in-law of R. This statement is False.
Based on the analysis, the only true statement is that R is the wife of O.
Revision Table: Key Relationship Concepts
| Term | Definition |
|---|---|
| Father-in-law | The father of one's spouse. |
| Brother | A male sibling. |
| Wife | A married woman considered in relation to her spouse. |
| Son | A boy or man in relation to his parents. |
| Mother | A female parent. |
| Mother-in-law | The mother of one's spouse. |
| Brother-in-law | The brother of one's spouse OR the husband of one's sibling. |
Additional Information: Solving Blood Relation Problems
Here are some tips for tackling blood relation questions:
- Read the code definitions carefully and note them down.
- Break down the expression segment by segment.
- Assign gender wherever possible based on the relationship (e.g., mother is female, son is male, wife is female). For relationships like brother or sibling, determine the gender if given, or note it as uncertain initially.
- Draw a family tree or diagram. Use symbols like squares for males, circles for females, double lines for marriage, and single lines for siblings or parent-child relationships.
- Combine the segments to form the complete family structure.
- Use the phrase "only child" or similar information to constrain the possibilities in the family tree.
- Evaluate each option against the constructed family tree to find the correct answer.
Practicing with different types of blood relation puzzles helps improve speed and accuracy.
Important Questions from Coded Blood Relation Problems
‘A # B’ means ‘A is the son of B’.
‘A @ B’ means ‘A is the mother of B’.
‘A & B’ means ‘A is the wife of B’.
‘A % B’ means ‘A is the sister of B’.
If ‘M @ R % K # G # N & T’, then which of the following statements is NOT correct?
‘A % B’ means ‘A is the sister of B’.
‘A $ B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the son of B’.
‘A & B’ means ‘A is the mother of B’.
If ‘R % T & Z $ S @ V @ C % Y’, then which of the following statements is NOT correct?
Read the given information carefully and answer the question that follows.
‘K $ D’ means ‘K is the father of D’.
‘K < D’ means ‘K is the wife of D’.
‘K > D’ means ‘K is the daughter of D’.
'K @ D’ means ‘K is the son of D’.
How is S related to N in the expression ‘H > R $ S @ T > N’?
‘R8S’ means ‘R is the father of S’.
‘R7S’ means ‘R is the sister of S’.
‘R6S’ means ‘R is the brother of S’.
‘R2S’ means ‘R is the wife of S’.
Which of the following expressions represents ‘X is the mother of Y’?
‘A # B’ means ‘A is the father of B’.
‘A % B’ means ‘A is the mother of B’.
‘A @ B’ means ‘A is the sister of B’.
‘A & B’ means ‘A is the son of B’.
If ‘G # M # T % S @ H & R & W @ U’, then which of the following statements is NOT correct?
