F + M means ‘F is the husband of M’ F ÷ M means ‘F is the daughter of M’ F − M means ‘F is the father of M’ F × M means ‘F is the mother of M’ If U + V × K – B, then how is U related to B?
Paternal grandfather
Understanding Blood Relations in Reasoning Puzzles
This question involves decoding relationships based on a set of defined codes. We are given an expression U + V × K – B and need to determine how U is related to B using the provided rules.
Decoding the Relationship Codes
Let's break down the given codes:
- F + M means ‘F is the husband of M’
- F ÷ M means ‘F is the daughter of M’
- F – M means ‘F is the father of M’
- F × M means ‘F is the mother of M’
Analyzing the Expression U + V × K – B
We will analyze the expression step-by-step from left to right:
- U + V: According to the first rule, F + M means 'F is the husband of M'. Applying this to U + V, it means ‘U is the husband of V’. This tells us U is male and V is female, and they are a married couple.
- V × K: According to the fourth rule, F × M means 'F is the mother of M'. Applying this to V × K, it means ‘V is the mother of K’. This tells us K is the child of V. Since U is V's husband, K is also the child of U.
- K – B: According to the third rule, F – M means 'F is the father of M'. Applying this to K – B, it means ‘K is the father of B’. This tells us B is the child of K. Since K is male, B is the child of K and K's partner (whose identity is not needed to find the relation between U and B).
Determining the Relationship between U and B
From our analysis, we have the following relationships:
- U is the father of K.
- K is the father of B.
If K is B's father, and U is K's father, then U is B's father's father. The father's father is known as the paternal grandfather.
Final Relationship
Based on the expression U + V × K – B, U is the paternal grandfather of B.
Revision Table: Blood Relation Codes
| Code | Meaning |
|---|---|
| + | Husband of |
| ÷ | Daughter of |
| – | Father of |
| × | Mother of |
Additional Information on Blood Relations
Blood relation questions test your ability to understand and decode complex family structures. They often involve symbolic representations of relationships. To solve these types of problems effectively:
- Carefully read and understand the meaning of each code or symbol provided.
- Break down the given expression into smaller segments based on the operators (+, –, ×, ÷).
- Determine the relationship between the two individuals in each segment.
- Build a step-by-step chain of relationships to connect the two individuals whose relation is asked.
- Identify the gender of individuals if specified or implied by the relation (e.g., husband is male, mother is female).
- Use diagrams or family trees if the expression is long or complex, though for simpler ones like this, a linear breakdown is sufficient.
- Remember common relations like paternal (father's side) and maternal (mother's side).
Practice is key to mastering blood relation problems and improving your speed and accuracy in competitive exams.
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