'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 wife of B'. If A + B - C ÷ D × E - F, then which of the following statements is NOT correct?
E is the brother of B.
Understanding the Blood Relation Coding
The question provides a set of coded relationships:
- '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 wife of B'.
We are given an expression combining these codes: A + B - C ÷ D × E - F. We need to decode this expression to understand the relationships between the individuals A, B, C, D, E, and F, and then check which of the given statements is not correct.
Decoding the Given Expression
Let's break down the expression step by step:
- A + B: A is the sister of B. This tells us A is female.
- B - C: B is the brother of C. This tells us B is male.
- Combining the first two parts (A+B and B-C), we know A and B are siblings, and B and C are siblings. Therefore, A, B, and C are siblings. A is female, and B is male. C's gender is not yet determined by this part alone.
- C ÷ D: C is the wife of D. This tells us C is female and D is male. Since C is the wife of D, D is the husband of C.
- D × E: D is the father of E. This confirms D is male and E is his child.
- E - F: E is the brother of F. This tells us E is male.
Building the Family Relationships
Based on the decoding, we can piece together the relationships:
- A, B, and C are siblings. A is female, B is male, C is female.
- C is married to D (C is wife, D is husband).
- D is the father of E. Since C is D's wife, C is the mother of E.
- E is the brother of F. This means E and F are siblings. Since D is the father of E and C is the mother of E, D and C are also the parents of F.
- E is male, F's gender is not specified in E - F relationship alone.
So, A, B, and C are siblings. C and D are a married couple, and they have children E and F. E is the son of C and D, and is the brother of F. A and B are C's siblings, which makes them E and F's aunt (A) and uncle (B).
Evaluating Each Statement
Now let's evaluate each given statement against the relationships we have derived:
- C is the mother of F. We deduced that C and D are the parents of E and F. Therefore, C is the mother of F. This statement is correct.
- E is the brother of B. E is the son of C, who is the sister of B. This means E is B's nephew, not B's brother. This statement is incorrect.
- A is the sister of the wife of D. The wife of D is C. The statement is "A is the sister of C". From our decoding, A, B, and C are siblings, and A is female. Thus, A is the sister of C. This statement is correct.
- A is the sister of C. As explained in the evaluation of statement 3, A, B, and C are siblings, and A is female. Therefore, A is the sister of C. This statement is correct.
Identifying the Incorrect Statement
We analyzed each statement and found that the statement "E is the brother of B" is not correct based on the given coded relationships.
Revision Table: Blood Relation Codes
| Code | Relationship |
|---|---|
| A + B | A is the sister of B |
| A - B | A is the brother of B |
| A × B | A is the father of B |
| A ÷ B | A is the wife of B |
Additional Information on Blood Relation Problems
Blood relation problems often require you to carefully decode the relationships and visualize or draw a family tree to keep track of the generations and connections. Key tips include:
- Identify the gender of individuals where possible.
- Determine the generation level for each person relative to others (e.g., parent generation, child generation, same generation).
- Combine relationships from the expression step by step.
- Pay close attention to what the question asks (e.g., find the correct statement, find the incorrect statement).
- Common relationships include parent, child, sibling, aunt, uncle, niece, nephew, grandparent, grandchild, cousin.
Similar Questions
If S - T means that S is the mother of T, S × T means that S is the father of T, S + T means that S is the sister of T, then which of the following expression shows that P is the mother of R?
If A × B means that A is the father of B, A ÷ B means that A is the mother of B, A + B means that A is the brother of B then which of the following expression shows that P is the paternal grandmother of R?
'P @ Q' means 'P is the wife of Q'.
'P # Q' means 'P is the brother of Q'.
'P $ Q' means 'P is the father of Q'.
'P - Q' means 'P is the daughter of Q'.
If Z - B $ D $ G, then how is Z related to G?
‘A @ B’ means ‘A is the husband of B’.
‘A & B’ means ‘A is the father of B’.
‘A # B’ means ‘B is the son of A’.
If F & G @ H # I @ J, then how is G related to J?
'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 sister of B'.
If A + P - Q × R - S, then which of the following statements is NOT correct?
A% B means 'A is the daughter of B'
A = B means 'A is the sister of B'
A $ B means 'A is the father of B'
If E = F = G $ H = I, then how is G related to E?
A - B means ‘A is the mother 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 sister of B’
If I * J - K % L $ M * N, then how is I related to N?
A # B means ‘A is the sister of B’.
A @ B means ‘A is the son of B’.
A & B means ‘A is the father of B’.
A % B means ‘A is the mother of B’.
If W @ Q % T & Y @ M % K, then how is W related to K?
If P ÷ Q means that P is the mother of Q, P – Q means that P is the father of Q, P × Q means that P is the sister of Q, then which of the following expression shows that B is the daughter of A?
A # B means ‘A is the brother of B’
A @ B means ‘A is the son of B’
A & B means ‘A is the wife of B’
A % B means ‘A is the mother of B’
If A % B & C # D @ E, then how is B related to E?
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’?
