‘A + B’ means ‘A is the brother of B’ ‘A – B’ means ‘A is the mother of B’ ‘A × B’ means ‘A is the husband of B’ ‘A ÷ B’ means ‘A is the sister of B’ If ‘C + M – S × K – T ÷ Q’, then which of the following statements is NOT correct?
Q is the husband of T.
Decoding Blood Relations: Understanding Coded Relationships
This question asks us to decode a series of relationships given in a coded format and then identify which of the provided statements about the family members is incorrect. We are given the following codes:
- A + B means A is the brother of B.
- A – B means A is the mother of B.
- A × B means A is the husband of B.
- A ÷ B means A is the sister of B.
The expression we need to decode is C + M – S × K – T ÷ Q.
Step-by-Step Decoding of the Expression
Let's break down the expression segment by segment from left to right:
- C + M: Using the rule A + B means A is the brother of B, this segment means C is the brother of M. This tells us that C is male.
- M – S: Using the rule A – B means A is the mother of B, this segment means M is the mother of S. This tells us that M is female. Since C is the brother of M, C is the maternal uncle of S.
- S × K: Using the rule A × B means A is the husband of B, this segment means S is the husband of K. This tells us that S is male and K is female. Since M is the mother of S, K is S's wife and M's daughter-in-law.
- K – T: Using the rule A – B means A is the mother of B, this segment means K is the mother of T. This tells us that K is female. Since S is the husband of K, S must be the father of T. So, T is the child of S and K.
- T ÷ Q: Using the rule A ÷ B means A is the sister of B, this segment means T is the sister of Q. This tells us that T is female. Since T is the child of S and K, and T is the sister of Q, Q must also be the child of S and K. T is female, but the gender of Q is not explicitly stated here; Q is simply the sibling of T.
Summarizing the Family Relationships
Based on the decoding, we can establish the following relationships:
- M is the mother of S. (M is female)
- C is the brother of M. (C is male)
- S is the husband of K. (S is male, K is female)
- K is the mother of T and Q. (K is female)
- S is the father of T and Q (since S is K's husband).
- T is the sister of Q. (T is female)
- Q is the child of S and K (sibling of T). The gender of Q is not determined by this relationship alone.
Analyzing the Statements
Now let's examine each given statement to see if it is correct based on our derived relationships.
- Statement 1: Q is the husband of T.
Our decoding shows that T is the sister of Q. T and Q are siblings, both children of S and K. Siblings cannot be husband and wife. Therefore, this statement is incorrect.
- Statement 2: M is the father's mother of Q.
Q's father is S (as S is the husband of K, Q's mother). S's mother is M. So, M is indeed the mother of Q's father (S). This means M is the paternal grandmother of Q, or father's mother of Q. This statement is correct.
- Statement 3: C is the mother’s brother of S.
S's mother is M. C is the brother of M. Therefore, C is the brother of S's mother. This means C is the maternal uncle of S, or mother's brother of S. This statement is correct.
- Statement 4: S is the father of Q.
Our decoding showed that S is the husband of K, and K is the mother of T and Q. Since S is male and K is female, S and K are the parents of T and Q. S is the male parent, so S is the father of both T and Q. This statement is correct.
We are looking for the statement that is NOT correct. Based on our analysis, Statement 1 ("Q is the husband of T") is incorrect because T and Q are siblings.
Conclusion
After carefully decoding the expression and analyzing each statement based on the derived blood relations, the statement that is NOT correct is "Q is the husband of T".
| Expression Segment | Relation Derived | Individuals Involved | Gender Derived |
|---|---|---|---|
| C + M | C is brother of M | C, M | C: Male, M: Female (from next step) |
| M – S | M is mother of S | M, S | M: Female |
| S × K | S is husband of K | S, K | S: Male, K: Female |
| K – T | K is mother of T | K, T | K: Female |
| T ÷ Q | T is sister of Q | T, Q | T: Female |
Summary of Key Relationships:
- C is M's brother.
- M is S's mother.
- S is K's husband and T/Q's father.
- K is S's wife and T/Q's mother.
- T is Q's sister and S/K's daughter.
- Q is T's sibling and S/K's child.
Revision Table: Checking Statements Against Relations
| Statement | Analysis | Correct/Incorrect |
|---|---|---|
| Q is the husband of T. | T is the sister of Q. Siblings cannot be husband/wife. | Incorrect |
| M is the father's mother of Q. | Q's father is S. S's mother is M. M is S's mother. Thus, M is Q's paternal grandmother. | Correct |
| C is the mother’s brother of S. | S's mother is M. M's brother is C. Thus, C is S's maternal uncle. | Correct |
| S is the father of Q. | S is K's husband. K is T's mother, and T is Q's sister. Thus, S and K are parents of T and Q. S is male, so he is the father. | Correct |
Additional Information on Blood Relations Problems
Blood relations questions often involve decoding symbols or phrases to build a family tree or structure and then answering questions about the relationships between different individuals. These problems test your ability to interpret information and logically deduce connections.
Key strategies for solving coded blood relations problems:
- Carefully note down what each symbol or code represents.
- Break down the given expression into smaller segments according to the symbols.
- Decode each segment to find the relationship between the two individuals.
- Determine the gender of individuals whenever possible based on the relationship (e.g., 'mother' is female, 'brother' is male, 'husband' is male, 'wife' is female). Note that 'child', 'sibling', or 'person' does not specify gender unless another part of the expression clarifies it.
- Build a simple diagram or list the relationships systematically to keep track.
- Once the relationships are established, analyze each statement provided in the options against your derived family structure.
- Be careful with terms like 'paternal' (relating to the father's side) and 'maternal' (relating to the mother's side).
- Double-check your deductions before concluding which statement is correct or incorrect.
Practicing different types of coded blood relations problems helps in quickly identifying the relationships and solving them accurately in exams.
Similar Questions
'A + B' means 'A is the son of B'
'A - B' means 'A is the husband of B'
'A × B' means 'A is the wife of B'
'A ÷ B' means 'A is the brother of B'
Hence, if we consider K ÷ Q × M + R × D + H - L, then how is L related to M?
'A # B' means 'A is the sister of B'
'A @ B' means 'A is the husband of B'
'A & B' means 'A is the brother of B'
'A % B' means 'A is the son of B'
Which of the following expressions means 'U is the mother of D' ?
‘A + B’ means ‘A is the son of B’
‘A – B’ means ‘A is the mother of B’
‘A × B’ means ‘A is the father of B’
‘A ÷ B’ means ‘A is the brother of B’
If ‘F × G ÷ K − M + S × W’, then which of the following statements is NOT correct?
‘A + B’ means ‘A is the son of B’
‘A – B’ means ‘A is the wife of B’
‘A × B’ means ‘A is the father of B’
‘A ÷ B’ means ‘A is the brother of B’
If ‘C + M – S × K − P ÷ T’, then which of the following statements is NOT correct?
‘A + B' means 'A is the brother of B'
'A - B' means 'A is the mother of B'
'A × B' means 'A is the husband of B'
'A ÷ B' means 'A is the sister of B'
'A # B' means 'A is the daughter-in-law of B'
If 'C - M + S + K × R # T', then which of the following statements is not correct?
‘E + F’ means ‘E is the father of F’ ‘
‘E – F’ means ‘E is the sister of F’ ‘
‘E × F’ means ‘E is the brother of F’
‘E ÷ F’ means ‘E is the son of F’
If ‘B – C + Z × G + Q’, how is C related to Q?
'A + B' means 'A' is the father of B'
'A - B' means 'A' is the wife of B'
'A × B' means 'A' is the brother of B'
'A ÷ B' means 'A' is the son of B'
Hence, if we consider M × R × Q + F + S - D ÷ U, then which of the following statements is NOT correct?
‘A # B’ means ‘A is the husband of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the sister of B’.
If P & Q @ D # K @ S # T, then which of the following statements is NOT correct?
'A + B' means 'A is the mother of B'
'A - B' means 'A is the husband of B'
'A × B' means 'A is the father of B'
'A ÷ B' means 'A is the daughter of B'
Hence, if we consider S + Z - R ÷ H - P + U × M, then which of the following is NOT correct?
'A + B' means 'A is the brother of B'
'A - B' means 'A is the mother of B'
'A × B' means 'A is the husband of B'
'A ÷ B' means 'A is the sister of B'
If C ÷ M - S + K - T × Q, then which of the following statements is NOT correct?
Important Questions from Coded Blood Relation Problems
If A @ B means A is the son of B, A # B means A is the husband of B and A * B means A is the daughter of B, then what does P @ Q * R # S mean?
If P $ Q means P is the husband of Q; P ! Q means P is the mother Q and P * Q means P is the daughter of Q, which of the following shows that Z is brother of W's wife, if Z is male?
If P $ Q means P is the brother of Q; P ! Q means P is the mother Q and P * Q means P is the son of Q, which of the following shows that W is brother of Z?
Read the following information carefully and answer the question given below:
M * N means ‘ M is the sister of N’
M % N means ‘ M is the father of N’
M # N means ‘M is the mother of N’
Which of the following option gives that, M is father of R?
If ‘A + B’ means ‘A is the mother of B’, ‘A - B’ means ‘A is the father of B’, ‘A × B’ means ‘A is the brother of B’, ‘A & B’ means ‘A is the son of B’, then how is M related to K in the expression ‘N − M + T × L & G & K’?
