If R ÷ S means that R is the mother of S, R × S means that R is the father of S, R - S means that R is the sister of S, then which of the following expression shows that P is the father of R?
P × Q - R
Understanding Blood Relation Codes
This question asks us to identify the expression that represents the relationship where P is the father of R, based on the given code language for blood relations.
The given codes are:
- R ÷ S means R is the mother of S.
- R × S means R is the father of S.
- R - S means R is the sister of S.
We need to analyze each given option to determine the relationship between P and R in each expression.
Analyzing Each Option
Option 1: P × Q ÷ R
Let's break down this expression:
- P × Q: According to the code 'R × S means R is the father of S', P × Q means P is the father of Q.
- Q ÷ R: According to the code 'R ÷ S means R is the mother of S', Q ÷ R means Q is the mother of R.
Combining these, P is the father of Q, and Q is the mother of R. This means P is Q's parent, and Q is R's parent. Specifically, P is the father of Q, and Q is the mother of R. Therefore, P is the father of Q, and Q is R's mother. P is married to Q (since P is Q's father and Q is R's mother, implying P is R's father). If P is the father of Q and Q is the mother of R, then P is the maternal grandfather of R. This does not show P as the father of R.
Option 2: Q × P - R
Let's break down this expression:
- Q × P: According to the code 'R × S means R is the father of S', Q × P means Q is the father of P.
- P - R: According to the code 'R - S means R is the sister of S', P - R means P is the sister of R.
Combining these, Q is the father of P, and P is the sister of R. This means P is Q's child (specifically daughter, as P is a sister) and P is a sibling of R. If Q is the father of P, and P is R's sister, then Q is also the father of R. This expression shows Q as the father of P and R, and P is R's sister. This does not show P as the father of R.
Option 3: R × Q - P
Let's break down this expression:
- R × Q: According to the code 'R × S means R is the father of S', R × Q means R is the father of Q.
- Q - P: According to the code 'R - S means R is the sister of S', Q - P means Q is the sister of P.
Combining these, R is the father of Q, and Q is the sister of P. This means R is Q's parent, and Q is a sibling of P. If R is the father of Q, and Q is the sister of P, then R is also the father of P. This expression shows R as the father of Q and P. This does not show P as the father of R.
Option 4: P × Q - R
Let's break down this expression:
- P × Q: According to the code 'R × S means R is the father of S', P × Q means P is the father of Q.
- Q - R: According to the code 'R - S means R is the sister of S', Q - R means Q is the sister of R.
Combining these, P is the father of Q, and Q is the sister of R. If P is the father of Q, and Q is the sister of R, it means Q and R are siblings, and P is the father of Q. Since Q is a child of P, and R is Q's sibling, R is also a child of P. Therefore, P is the father of R. This expression correctly shows P as the father of R.
Summary Table of Relationships
| Expression | Relationship 1 | Relationship 2 | Implied Relationship between P and R | P is Father of R? |
|---|---|---|---|---|
| P × Q ÷ R | P is father of Q | Q is mother of R | P is maternal grandfather of R | No |
| Q × P - R | Q is father of P | P is sister of R | Q is father of P and R; P is R's sister | No |
| R × Q - P | R is father of Q | Q is sister of P | R is father of Q and P; Q is P's sister | No |
| P × Q - R | P is father of Q | Q is sister of R | P is father of Q and R; Q is R's sister | Yes |
Based on the analysis of each option, the expression P × Q - R correctly represents the relationship where P is the father of R.
Revision Table: Key Blood Relation Codes
| Symbol | Meaning (R <symbol> S) |
|---|---|
| ÷ | R is the mother of S |
| × | R is the father of S |
| - | R is the sister of S |
Additional Information: Solving Blood Relation Puzzles
Blood relation questions test your ability to understand and decode relationships described in a coded language or through a series of statements. Here are some tips for solving them:
- Decode Symbols: Clearly write down the meaning of each symbol or code given in the question.
- Break Down Expressions: For coded expressions, break them down into smaller parts based on the operators (symbols). Analyze the relationship for each part sequentially.
- Build a Family Tree: For more complex questions, drawing a simple family tree or diagram can help visualize the relationships. Use symbols for gender (e.g., + for male, - for female) and connections (e.g., horizontal line for siblings, vertical line for parent-child).
- Track Gender: Pay close attention to gender information provided by the codes or statements. This is crucial for determining relationships accurately (e.g., 'sister' implies female, 'father' implies male).
- Eliminate Options: Once you analyze an option and find it doesn't match the target relationship, eliminate it.
- Work Backwards (Sometimes): In some cases, it might be helpful to start from the desired relationship and see which expression could lead to it.
Practicing different types of blood relation questions will improve your speed and accuracy in decoding complex relationships.
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?
‘A @ B’ means ‘A is the husband of B’.
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If F & G @ H # I @ J, then how is G related to J?
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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?
A # B means ‘A is the brother of B’
A @ B means ‘A is the son of B’
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A % B means ‘A is the mother of B’
If A % B & C # D @ E, then how is B related to E?
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 Q related to K?
- If A × B means that A is the brother of B, A – B means that A is the sister of B, A + B means that A is the father of B then which of the following expression shows that P is the father of R?
‘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 S @ T # P @ Q # R & V, then how is T related to Q?
If X × Y means that X is the mother of Y, X – Y means that X is the father of Y, X ÷ Y means that X is the sister of Y, then which of the following expression shows that P is the paternal grandfather of R?
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’?
