A & B means ‘A is the son of B’ A # B means ‘A is the sister of B’ A @ B means ‘A is the brother of B’ A % B means ‘A is the father of B’ A - B means ‘A is the daughter of B’ A * B means ‘A is the wife of B’ If C # D @ E % Z & L # M - N * P, then how is Z related to N?
Grandson
Understanding Blood Relations with Coded Language
This question asks us to determine the relationship between two individuals, Z and N, based on a complex expression involving coded relationships. We need to decode each part of the expression step-by-step and build a family tree or relationship chart.
Decoding the Relationships
Let's first understand the meaning of each symbol given:
- A & B means ‘A is the son of B’
- A # B means ‘A is the sister of B’
- A @ B means ‘A is the brother of B’
- A % B means ‘A is the father of B’
- A - B means ‘A is the daughter of B’
- A * B means ‘A is the wife of B’
Analyzing the Expression: C # D @ E % Z & L # M - N * P
Now, let's break down the given expression part by part:
- C # D: C is the sister of D. (C is female)
- D @ E: D is the brother of E. (D is male)
Combining the first two, C, D, and E are siblings. C is female, D is male. E could be male or female based on these two statements alone, but the next statement clarifies E's gender.
- E % Z: E is the father of Z. (E is male)
This confirms E is male and establishes the relationship between E and Z. Z is E's child.
- Z & L: Z is the son of L. (Z is male)
If Z is the son of E (from step 3) and also the son of L, then E and L must be the parents of Z. Since E is the father, L must be the mother. This also confirms Z is male.
- L # M: L is the sister of M. (L is female)
L and M are siblings, and L is female. M's gender is not yet determined by this statement.
- M - N: M is the daughter of N. (M is female)
This tells us M is female and N is M's parent.
- N * P: N is the wife of P. (N is female, P is male)
This establishes N and P as a married couple, with N being female. Since M is N's daughter (from step 6) and N is female, N must be M's mother.
Connecting the Relationships to Find Z's Relation to N
Let's consolidate the relationships we've found:
- C, D, E are siblings. E is male. C is female.
- E and L are parents of Z. E is father, L is mother. Z is male.
- L and M are siblings. L is female. M is female.
- N and P are married. N is wife (female), P is husband (male).
- M is the daughter of N. Since N is female, N is M's mother.
- Since L is M's sister, and M is N's daughter, L is also N's daughter.
- L is Z's mother (from step 4).
So, L is Z's mother, and L is N's daughter. This means N is the mother of Z's mother. Therefore, N is Z's maternal grandmother.
Determining How Z is Related to N
The question asks for the relationship of Z to N. We found that N is Z's grandmother. The inverse relationship is that Z is the grandson of N.
Let's summarize the relevant chain:
- Z is the son of L.
- L is the sister of M.
- M is the daughter of N.
- This implies L is also the daughter of N.
- So, Z is the son of N's daughter.
- This makes Z the grandson of N.
Here is a simplified view of the key relationships:
| Relationship | Individuals | Gender |
|---|---|---|
| Parents of Z | E (Father), L (Mother) | E: Male, L: Female |
| Children of N | M (Daughter), L (Daughter) | M: Female, L: Female |
| Relationship L to N | L is daughter of N | L: Female |
| Relationship Z to L | Z is son of L | Z: Male |
| Relationship Z to N | Z is son of N's daughter (L) | Z: Male |
Based on this analysis, Z is the grandson of N.
Revision Table: Key Relationship Codes
| Code | Meaning |
|---|---|
| & | Son of |
| # | Sister of |
| @ | Brother of |
| % | Father of |
| - | Daughter of |
| * | Wife of |
Additional Information: Solving Blood Relation Problems
Solving blood relation problems effectively requires a systematic approach. Here are some tips:
- Identify Gender: As you decode, note the gender of each person involved whenever possible.
- Build a Diagram: Drawing a simple family tree diagram can be very helpful. Use symbols like a circle for female, square for male, double line for marriage, and single line for sibling or parent-child relationships.
- Break Down Complex Expressions: Analyze the expression piece by piece, from left to right, establishing relationships incrementally.
- Focus on the Question: Once the relationships are clear, specifically focus on the two individuals mentioned in the question (Z and N in this case) and trace the path between them in your diagram or notes.
- Double-Check: Review your steps and the final relationship to ensure accuracy.
Practice with different types of blood relation questions, including those with codes, dialogues, or direct relationships, to improve speed and accuracy for competitive exams.
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