Blood Relation — BSSC General Intelligence And Reasoning

• Given conditions: A is male (+). C is the father (+) of A, hence also the father of A's sibling, B. D is C's sister (-). E is D's mother (-), which means E is also C's mother.

• Deduction process: Since C is the child of E, and B is the child of C, B is the grandchild of E. However, B's gender is completely undefined in the statement.

• Final Answer: Because B could be a male (grandson) or female (granddaughter), the exact relationship cannot be definitively determined.

• Exam Trick: Never assume gender from neutral terms like 'sibling' or 'child', or from names. Always look for explicit gender markers.

• Given conditions: Suresh is speaking about a boy in a photograph.

• Deduction process: Break the sentence backward starting from 'my'. 'My mother's only son' refers exclusively to Suresh himself (since Suresh is a male). The rest of the sentence becomes: 'He is the son of Suresh'.

• Final Answer: Since the boy is Suresh's son, Suresh is the father of the boy.

• Exam Trick: In pointing questions, the phrase "only son of my mother" spoken by a male always translates directly to "myself".

• Given conditions: We need to prove that C is the son of M. This requires two things: 1) C must be a male (+). 2) M must be one generation above C.

• Deduction process: Test Option C: $M * C + N$. First, $M * C$ means M is the father of C. Second, $C + N$ means C is the brother of N. Since C is a brother, C is a male. Since M is his father, C is the son of M.

• Final Answer: $M * C + N$ correctly establishes C as the male child of M.

• Exam Trick: Use the 'Gender Elimination' shortcut. Look at the symbol immediately following C to determine C's gender. In options A and B, the gender of C isn't explicitly defined at the end, or C is a sister (-). Option C gives $C + N$, proving C is a male.

• Given conditions: L is M's son. M has a sister married to O. P is the son of O and M's sister. (N is extra information).

• Deduction process: M and M's sister share the same parents (they are siblings). L is the son of M, and P is the son of M's sister. Since their parents are siblings, L and P are in the same generation and share grandparents.

• Final Answer: P is the cousin of L.

• Exam Trick: Draw the tree focusing on the target nodes (L and P) and find their common ancestor layer. M and M's sister form the parent layer. Their children are automatically cousins. Ignore dead-end info like N.

• Given conditions: The girl refers to her uncle's father's daughter's son.

• Deduction process: Let's reverse engineer from "her uncle". The father of her uncle is her grandfather. The daughter of her grandfather could be her aunt or her own mother. The son of this daughter would be her cousin (if aunt) or her brother (if mother).

• Final Answer: Since 'Cousin' is not available in the options, we must assume the direct bloodline where the 'daughter' refers to the girl's own mother. Thus, the mother's son is the girl's brother.

• Exam Trick: When "Cousin" is missing from the options in pointing relations, "only daughter of grandfather" or similar ambiguous phrases typically default to the speaker's own mother.

• Given conditions: For M to be the maternal uncle of T, M must be the brother of T's mother.

• Deduction process: Check Option B: $M * K - T$. Here, $M * K$ means M is the brother of K (so M is male). $K - T$ means K is the mother of T. Combining these, M is the brother of T's mother. Therefore, M is T's maternal uncle.

• Final Answer: $M * K - T$ correctly forms the relationship.

• Exam Trick: Analyze generation and gender: Uncle means male (+1 generation relative to T). $M * K$ makes M male. $K - T$ shifts the generation gap making K the mother. This logic instantly confirms the answer.

• Given conditions: The woman is the wife of John's father's grandson. John explicitly has no brother.

• Deduction process: John's father's grandson would normally be the son of John or the son of John's brother. However, since John has no brother, the grandson MUST be John's own son. The woman is the wife of this grandson (John's son). Therefore, she is the wife of John's son.

• Final Answer: The wife of one's son is their Daughter-in-law.

• Exam Trick: The conditional phrase "has no brother" (or "only child") restricts the lineage. "Grandson of my father" instantly simplifies to "my son".

• Given conditions:
1. D is the only child of G and mother of C.
2. A is the grandmother of C and mother-in-law of F.
3. B is G's brother, married to E, with daughter H.

• Deduction process: Since D is C's mother, D's husband must be F (because A is F's mother-in-law and C's grandmother). This means A is the mother of D. Since D is G's only child, A and G must be the parents of D (meaning A and G are married). Therefore, G is the father of D. Since F is married to D, G is the father of F's wife.

• Final Answer: G is the father-in-law of F.

• Exam Trick: In multi-generation puzzles, anchor the tree by finding the parents of the lowest generation (C). C's mother is D, making C's father F. Then trace upward to their parents (A and G).

• Given conditions: We need to establish A as the paternal aunt (father's sister) of B. This means A must be female, and A must be the sister of someone who is the father of B.

• Deduction process: Check option A: $A * X \% B$. $A * X$ means A is the sister of X, which establishes A as a female. Next, $X \% B$ means X is the father of B. Combining these, A is the sister of B's father.

• Final Answer: Therefore, A is the paternal aunt of B.

• Exam Trick: Eliminate options quickly by checking the gender of A first. In option B, A is a brother (male). In option C, A is a father (male). Option D doesn't end with a definitive link for A's relation to B without knowing X.

• Given conditions: A man is explaining a woman's relationship through his wife's lineage.

• Deduction process: Start from 'my' and break the sentence. "My wife's grandfather's only child" would be the parent (father or mother) of the man's wife. The "only daughter" of the wife's parent must logically be the man's wife herself.

• Final Answer: The woman he is pointing to is his own wife.

• Exam Trick: Phrases like "grandfather's only child" immediately reduce to "parent". Then "only daughter of parent" for a female reduces to "self" (the wife in this case).