Solving Blood Relation Puzzles with Code Language

This question asks us to determine the relationship between two people, K and N, based on a coded expression involving various family relationships. We are given a set of rules defining what each symbol (+, -, ×, ÷) represents in terms of family relations.

Understanding the Code Language Rules

The problem provides the following code definitions:

• A + B means 'A is the mother of B'
• A - B means 'A is brother of B'
• A × B means 'A is the wife of B'
• A ÷ B means 'A is the father of B'

Analyzing the Given Expression: K × L ÷ M + N - O

We need to break down the expression 'K × L ÷ M + N - O' from left to right to build the chain of relationships connecting K, L, M, N, and O.

1. K × L: According to the rule 'A × B means A is the wife of B', K × L means 'K is the wife of L'. This tells us K is female and L is male.
2. L ÷ M: According to the rule 'A ÷ B means A is the father of B', L ÷ M means 'L is the father of M'. Since K is the wife of L, K is the mother of M.
3. M + N: According to the rule 'A + B means A is the mother of B', M + N means 'M is the mother of N'.
4. N - O: According to the rule 'A - B means A is brother of B', N - O means 'N is the brother of O'. This tells us N is male.

Establishing the Relationship between K and N

Let's connect the relationships we've found:

• K is the wife of L.
• L is the father of M. (So, K is the mother of M).
• M is the mother of N.

From this chain, we can see that K is the mother of M, and M is the mother of N. Therefore, K is the mother of N's mother. The mother of your mother is your maternal grandmother.

Thus, K is the maternal grandmother of N.

Comparing with the Options

We need to find the option that matches the relationship 'Maternal Grandmother'. Let's look at the options provided:

• Brother's wife
• Wife's father
• Mother's Mother
• Father's brother

The relationship we found is 'Mother's Mother', which directly matches one of the options.

Conclusion

Based on the analysis of the coded relationships, K is the mother of M, and M is the mother of N. This makes K the mother's mother of N.

The final answer is the relationship "Mother's Mother".

Revision Table: Blood Relation Codes

Additional Information: Approaching Blood Relation Problems

Blood relation questions in reasoning tests require careful analysis of given relationships to deduce the connection between specific individuals. When dealing with coded relations or complex expressions, it's helpful to follow a systematic approach:

• Understand the Code: Carefully read and understand what each symbol or code represents. Pay attention to the order (A relation to B or B relation to A).
• Break Down the Expression: Analyze the given expression part by part, starting from one end (usually left to right). For each pair connected by a symbol, determine the relationship between them.
• Build a Family Tree/Chain: As you break down the expression, mentally or on paper, create a simple diagram or a chain of relationships. This helps visualize the connections. Represent individuals and links (e.g., K is wife of L, L is father of M, M is mother of N). Indicate gender if possible.
• Connect the Individuals: Once the full chain/tree is built, trace the path between the two individuals whose relationship is asked.
• Identify the Relationship: Clearly state the deduced relationship between the two individuals.
• Compare with Options: Match your derived relationship with the given options to find the correct answer.

Practicing different types of blood relation problems helps improve speed and accuracy in identifying complex family connections.