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Question

If C \(D means C is daughter of D, C & D means C is mother of D and C % D means C is son of D, then what does W\) X & Y % Z mean?

This question was previously asked in
RRB ALP 2018 CBT 2 Fitter Question Paper (21-Jan-2019) (Shift 3)
The correct answer is

Z is father of W

Understanding Blood Relations from Symbols

This question asks us to decode a symbolic representation of blood relations and determine the relationship between two individuals, W and Z, based on the given expression W $ X & Y % Z.

Decoding the Given Symbols

Let's first understand what each symbol means:

  • C $ D means C is daughter of D. This tells us D is the parent of C, and C is female.
  • C & D means C is mother of D. This tells us C is the parent of D, and C is female.
  • C % D means C is son of D. This tells us D is the parent of C, and C is male.

Breaking Down the Expression: W $ X & Y % Z

Now, let's apply these rules to the expression W $ X & Y % Z, breaking it down into parts:

  1. W $ X: According to the first rule, this means W is daughter of X. This establishes X as a parent of W, and W is female.
  2. X & Y: According to the second rule, this means X is mother of Y. This establishes X as a parent of Y, and X is female.
  3. Y % Z: According to the third rule, this means Y is son of Z. This establishes Z as a parent of Y, and Y is male.

Connecting the Relations

From the breakdown, we have the following facts:

  • W is daughter of X.
  • X is mother of Y.
  • Y is son of Z.

From 'X is mother of Y' and 'Y is son of Z', we know that Y is the child of both X and Z. Since X is the mother and Z is the other parent, Z must be the father of Y. Thus, X and Z are the parents of Y, and they are a couple where X is the mother and Z is the father.

Now consider W. W is the daughter of X. Since X and Z are a couple and are parents to Y, and W is also a child of X, W must also be a child of Z. Because W is female ('daughter of X'), and Z is the father, Z is the father of W.

Summary of Relationships

Relation Meaning Deduction
W $ X W is daughter of X X is W's parent, W is female
X & Y X is mother of Y X is Y's parent, X is female
Y % Z Y is son of Z Z is Y's parent, Y is male

Combining the deductions:

  • X is the mother of Y.
  • Z is the parent of Y, and Y is male. Therefore, Z is the father of Y.
  • X and Z are parents of Y, with X being the mother and Z being the father. X and Z are a couple.
  • W is the daughter of X. Since X and Z are a couple, and X is W's mother, Z must be W's father.

Conclusion: Relation between W and Z

Based on our analysis, Z is the father of W.

Evaluating the Options

Let's compare our conclusion with the given options:

  1. Z is wife of W (Incorrect - Z is male (father), W is female (daughter). A father cannot be the wife of his daughter).
  2. Z is mother of W (Incorrect - Z is male (father), W is female (daughter). A father cannot be the mother).
  3. Z is father of W (Correct - This matches our deduction).
  4. Z is daughter of W (Incorrect - Z is the parent (father) of W, not the other way around).

The relationship deduced from the expression W $ X & Y % Z is that Z is the father of W.

Revision Table: Blood Relation Symbols

Symbol Meaning Gender of Person before Symbol
$ is daughter of Female
& is mother of Female
% is son of Male

Additional Information: Solving Blood Relation Puzzles

Solving blood relation puzzles involving symbols or codes requires careful step-by-step decoding. It's often helpful to draw a family tree or make notes to keep track of the relationships and genders as you decode each part of the expression. Remember to identify the gender of individuals whenever possible from the symbol definitions. When combining relations, look for common individuals (like X and Y in this case) to link different parts of the family tree. Pay close attention to which person is mentioned before and after the symbol, as the order is crucial for determining the correct relationship.

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Similar Questions

  1. Ina certain code language, 
    ‘A+B’ means ‘A is the mother of B’, 
    'A - B' means ‘A is the brother of B’, 
    'A x B’ means ‘A is the wife of B’ and 
    '\(A\div B\)' means ‘A is the father of B'. 
    How is M related to T if ‘M+N x P- \(S\div T\)'?

  2. In a certain code language,

    A + B means ‘A is the mother of B’,

    A – B means ‘A is the brother of B’,

    A × B means ‘A is the wife of B’,

    A ÷ B means ‘A is the father of B’,

    and A # B means ‘A is the daughter of B’.

    How is K related to Q if ‘P × Q ÷ T + Z – S # K’?

  3. In a certain code language,

    A + B means ‘A is the mother of B’,

    A – B means ‘A is the brother of B’,

    A × B means ‘A is the wife of B’ and

    A ÷ B means ‘A is the father of B’.

    Based on the above, how is Q related to T if ‘P + Q – R × S ÷ T’?

  4. In a certain code language,

    A + B means ‘A is the mother of B’,

    A – B means ‘A is the brother of B’,

    A × B means ‘A is the wife of B’ and

    A ÷ B means ‘A is the father of B’.

    Based on the above, how is Q related to T if ‘P – Q × R ÷ S + T’?

  5. In a certain code language,
    A + B means 'A is the mother of B',
    A – B means 'A is the brother of B',
    A × B means 'A is the wife of B',
    A ÷ B means 'A is the father of B',
    and A # B means 'A is the daughter of B'.

    How is Q related to J if 'Q + R – P × S ÷ T – J + K'?

  6. In a certain code language, 'A × B' means 'A is the son of B', 'A - B' means 'A is the brother of B', 'A + B' means 'A is the wife of B' and 'A % B' means 'A is the father of B'. How is M related to T if 'M × N - P % S + T'?
  7. If G + H means G is daughter of H, G- H means G is sister H and G * H means G is husband of H, which of the following shows that I is the daughter of H?

  8. If A \(B means A is the husband of B, A # B means A is the brother of B and A * B means A is the mother of B, then what does P\) Q * R # S mean?

  9. If A \(B means A is the sister of B, A # B means A is the husband of B and A * B means A is the daughter of B, then what does P\) Q * R # S mean?

  10. If E % F means E is the brother of F, E & F means E is the sister of F  and  E  \( F  means  E   is   the   daughter  of  F,  then  what  does  P%  Q  &  R  \)  S  mean?


Important Questions from Coded Blood Relation Problems

  1. 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? 

  2. 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?

  3. 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?

  4. 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?

  5. 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’?

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