‘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?
T is the paternal grandfather of M.
Understanding the Blood Relation Coding
This question involves decoding a relationship expression based on a set of defined symbols. We are given the meanings of four symbols: '#', '@', '&', and '%'. We need to apply these meanings to a specific string 'M @ R % K # G # N & T' and then evaluate the given statements to find the one that is NOT correct.
Decoding the Symbols:
- ‘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’.
Analyzing the Expression: M @ R % K # G # N & T
Let's break down the expression segment by segment from left to right:
- M @ R: According to the definition, 'A @ B' means 'A is the mother of B'. So, 'M @ R' means M is the mother of R. This tells us M is female.
- R % K: According to the definition, 'A % B' means 'A is the sister of B'. So, 'R % K' means R is the sister of K. This tells us R is female. Since M is the mother of R, M is also the mother of K (as R and K are siblings).
- K # G: According to the definition, 'A # B' means 'A is the son of B'. So, 'K # G' means K is the son of G. This tells us K is male. We know M is the mother of K. Since K is the son of G, G must be the father of K. Therefore, M is the wife of G.
- G # N: According to the definition, 'A # B' means 'A is the son of B'. So, 'G # N' means G is the son of N. This tells us G is male.
- N & T: According to the definition, 'A & B' means 'A is the wife of B'. So, 'N & T' means N is the wife of T. This tells us N is female and T is male.
Summary of Relationships Derived:
- M is the mother of R and K. (M is female)
- R is the sister of K. (R is female)
- K is the son of G. (K is male)
- G is the father of R and K, and husband of M. (G is male)
- G is the son of N. (G is male)
- N is the wife of T. (N is female)
- T is the husband of N. (T is male)
From this, we can see the family structure:
- T and N are a couple.
- G is their son.
- G and M are a couple.
- K and R are their children.
Evaluating the Statements:
Now, let's examine each statement based on our derived relationships:
Statement 1: T is the paternal grandfather of M.
- T is the father of G.
- G is the husband of M.
- T is M's father-in-law, not her paternal grandfather. Paternal grandfather is the father's father. M's father is not in this family tree (we only know her husband's family).
- Therefore, this statement is NOT correct.
Statement 2: N is the paternal grandmother of K.
- N is the mother of G.
- G is the father of K.
- Paternal grandmother is the father's mother. N is G's mother, and G is K's father. So, N is K's paternal grandmother.
- Therefore, this statement is correct.
Statement 3: M is the mother of K.
- From our decoding of 'M @ R' and 'R % K', we established that M is the mother of R and K.
- Therefore, this statement is correct.
Statement 4: R is the daughter of G.
- We know R is the sister of K and M is their mother.
- We know K is the son of G and M is the wife of G.
- Since R is K's sister and M is R's mother (and G is M's husband and K's father), R is also the daughter of G.
- Therefore, this statement is correct.
The statement that is NOT correct is Statement 1.
Revision Table: Blood Relation Statements
| Statement | Derived Relationship | Correctness |
|---|---|---|
| T is the paternal grandfather of M. | T is G's father, G is M's husband. T is M's father-in-law. | Incorrect |
| N is the paternal grandmother of K. | N is G's mother, G is K's father. N is K's father's mother. | Correct |
| M is the mother of K. | M @ R & R % K implies M is mother of R and K. Also K # G & M & G implies M is mother of K. | Correct |
| R is the daughter of G. | R is sister of K, K is son of G, M is wife of G and mother of R. R is daughter of G. | Correct |
Additional Information: Understanding Paternal & Maternal Relations
In blood relations questions, it's important to distinguish between paternal and maternal relationships:
- Paternal: Relating to the father's side of the family.
- Paternal grandfather: Father's father.
- Paternal grandmother: Father's mother.
- Paternal uncle: Father's brother.
- Paternal aunt: Father's sister.
- Maternal: Relating to the mother's side of the family.
- Maternal grandfather: Mother's father.
- Maternal grandmother: Mother's mother.
- Maternal uncle: Mother's brother.
- Maternal aunt: Mother's sister.
In-law relationships are different, referring to relatives by marriage (e.g., father-in-law is spouse's father).
Important Questions from Coded Blood Relation Problems
‘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?
‘A +B’ means ‘A is the sister of B’
‘A - B’ means ‘A is the daughter of B’
‘A × B’ means ‘A is the brother of B’
‘A B’ means ‘A is the husband of B’
IfV + U × Q – T + R + P × S, then how is P related to V?
