Blood Relation Aptitude MCQ Questions with Answers Set 03

Answer: (d) Sister

Explanation:
1. The man's brother's father is the man's own father.
2. The only son of the woman's grandfather is the woman's father.
3. So both have the same father; the woman is the man's sister.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (b) Three

Explanation:
1. C is not B's mother, so C is B's father (male) and his wife A is female.
2. D is A's daughter, B is the son of A and C, and F is B's brother.
3. So A has three children: D, B and F.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (b) Uncle

Explanation:
1. C is B's father.
2. E is C's brother.
3. So E is B's (paternal) uncle.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (a) A

Explanation:
1. C is B's father, not mother.
2. A is C's wife, so A is B's mother.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (c) A, D

Explanation:
1. A is the wife of C, so A is female; D is a daughter, so D is female.
2. B is a son, E and F are brothers, so they are males.
3. The only female pair is A, D.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (d) 4

Explanation:
1. Males: C (father of B), B (son), E (brother) and F (brother).
2. Females: A and D.
3. Number of males = 4.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (d) Cannot be determined

Explanation:
1. A is married to C, B and F are males, and D is A's daughter (E's niece).
2. No statement mentions E's wife, so she cannot be identified.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (a) Dentist

Explanation:
1. The dentist is U's grandfather, so his wife (two couples exist) must be alive in the family.
2. The two couples are S-P and R-advocate. The grandparent couple cannot be R and the advocate, since R is a businessman.
3. So the dentist is P, married to the manager S.

Teacher's Note:
1. List the couples first; in such puzzles the grandparent couple is usually decided by elimination.
2. Tick off each profession as it is fixed so the remaining ones are easy to assign.

Answer: (d) Can't be determined

Explanation:
1. P (grandfather) and R (husband of Q, the advocate) are males; S and Q are females.
2. The genders of U and T are not given anywhere.
3. So the number of males could be 2, 3 or 4; it cannot be determined.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (b) P, S

Explanation:
1. Statement (c) directly says the manager S is married to P.
2. The other couple is R and Q.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (d) Contractor

Explanation:
1. P is the dentist, S the manager, R the businessman, U the philosopher.
2. Q is married to R, so Q is the advocate.
3. The only profession left is contractor, which goes to T.

Teacher's Note:
1. When all but one person and one profession are fixed, the last pair is forced.
2. Make a two-column table of people and professions to see what is left.

Answer: (b) Grandfather

Explanation:
1. P, the dentist, is the grandfather of U.
2. Q is the mother of both U and T, so T is U's sibling.
3. Hence P is T's grandfather as well.

Teacher's Note:
1. Draw a family tree with + for male, - for female and ? for unknown gender before answering.
2. Do not assume a person's gender unless a word like son, wife or sister fixes it.

Answer: (b) Grandfather

Explanation:
1. Geeta's father is Surendra, and Surendra is a child of Deepak.
2. Sarita is Surendra's sister, so Sarita is also Deepak's child.
3. Sarita is Seema's mother, so Deepak is Seema's grandfather.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) Grandfather or Grandmother

Explanation:
1. Q's mother is a daughter of M and a sister of P, so P is a child of M.
2. S and T are children of P, so T is a grandchild of M.
3. M's gender is not given, so M is T's grandfather or grandmother.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (b) Aunt

Explanation:
1. Seema's mother's son is Seema's brother.
2. Bunty is the son of Seema's brother.
3. So Seema is Bunty's aunt (father's sister).

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (b) Uncle

Explanation:
1. The sister of the boy's mother is his maternal aunt.
2. The husband of an aunt is an uncle.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (c) Mother

Explanation:
1. The only daughter of the woman's father is the woman herself.
2. So the person's mother is the woman.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (d) None of these

Explanation:
1. Riya's father is Suman's son and Riya's mother is the female in the picture.
2. So the female is the wife of Suman's son.
3. Suman is her mother-in-law, which is not among the first three options.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (b) Mother

Explanation:
1. Ravindra is Rajendra's only brother, so Deepa (Rajendra's sister-in-law) is Ravindra's wife.
2. Sarita is Deepa's mother-in-law, so Sarita is the mother of Ravindra (wife of Surendra).
3. Hence Sarita is also Rajendra's mother.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) Aunt

Explanation:
1. E is B's daughter and D is E's brother, so D is B's son.
2. A is B's sister, so A is D's aunt.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (b) Aunt

Explanation:
1. A's daughter is R's sister, so R (and his brother S) are A's sons.
2. B is A's sister, so B is S's aunt.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (b) Mother-in-law

Explanation:
1. C is B's daughter and F is C's husband.
2. The mother of one's wife is one's mother-in-law.
3. So B is F's mother-in-law.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) Either myself or brother

Explanation:
1. My mother's father's only daughter is my mother.
2. My mother's only son is either me (if I am male) or my brother (if I am female).
3. The speaker's gender is not known, so both cases remain.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) Cannot be determined

Explanation:
1. Rajendra's mother's husband is his father; the father's mother is Rajendra's grandmother.
2. Her granddaughter may be Rajendra's sister or his cousin.
3. So the relation cannot be determined.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (b) Sister

Explanation:
1. Nada's grandfather's only child must be Nada's own father or mother.
2. The boy is a son of that parent, so he is Nada's brother.
3. Nada, a girl, is his sister.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (d) Brother

Explanation:
1. The only son of Vikash's grandfather is Vikash's father.
2. The lady is the daughter of Vikash's father, so she is his sister.
3. Vikash is her brother.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (b) Brother

Explanation:
1. Deepa's grandfather's only son is Deepa's father.
2. Roshan is the son of Deepa's father, so he is her brother.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (d) Cousin

Explanation:
1. The brother-in-law of the friend's mother is the friend's uncle (father's brother or mother's sister's husband).
2. The daughter of one's uncle is one's cousin.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) Sister

Explanation:
1. The lady's mother's husband is her father; his sister is the lady's aunt.
2. The same woman is the man's aunt, so the two share the same aunt.
3. Of the given options, only 'Sister' fits.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (d) His son

Explanation:
1. Harendra has no brothers or sisters, so his father's son is Harendra himself.
2. The man's mother is Harendra's wife.
3. So the man in the portrait is Harendra's son.

Teacher's Note:
1. Replace the speaker and the pointed person with letters and decode the statement from the end that is closest to the speaker.
2. Phrases like 'only son of my grandfather' usually collapse to a parent, so simplify them first.

Answer: (b) Daughter

Explanation:
1. The father-in-law of the professor's wife is the professor's father; his wife is the professor's mother.
2. The only son of the professor's mother is the professor himself.
3. So the girl is the professor's only daughter.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) Cousin

Explanation:
1. D's brother's sister's father is D's father.
2. S is the brother of D's father, so S is D's uncle.
3. B is S's daughter, so D and B are cousins.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) None of these

Explanation:
1. Sushma's daughter-in-law's son is Sushma's grandson.
2. The grandson's son is the great-grandson of Sushma and her husband.
3. 'Great-grandson' is not listed, so the answer is none of these.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (d) None of these

Explanation:
1. Ravindra is Mahendra's son and the father of Riya.
2. Priyanka is Riya's sister, so Ravindra is her father too.
3. So Priyanka is Mahendra's granddaughter, which is not listed.

Teacher's Note:
1. Break a long chain into small links (mother's husband = father, father's mother = grandmother) and resolve one link at a time.
2. Keep track of gender at every step; many wrong options differ only in gender.

Answer: (c) Data inadequate

Explanation:
1. C is P's daughter-in-law, so B's father is P's son.
2. If A is B's father's brother, A is P's son; but A could also be C's brother (maternal uncle) or the husband of B's father's sister (P's son-in-law).
3. Since 'uncle' allows more than one case, the data is inadequate.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (c) Y is the son of A

Explanation:
1. Y is the sister of X, so Y is female.
2. Hence Y cannot be anyone's son.
3. 'Y is the son of A' is definitely not true; the others may or may not be true.

Teacher's Note:
1. In 'definitely not true' questions, look for a statement that contradicts a fixed gender or generation.
2. Statements that are merely unproven are not the answer.

Answer: (d) Cannot be determined

Explanation:
1. D's father's mother is D's grandmother.
2. Her son may be D's father or D's uncle.
3. His wife may be D's mother or D's aunt, so the relation cannot be determined.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (d) 17

Explanation:
1. The man himself: 1.
2. His four sons: 4.
3. Each son has 3 sons: 4 × 3 = 12 grandsons.
4. Total males = 1 + 4 + 12 = 17.

Teacher's Note:
1. Count each generation separately and add.
2. Ignore wives and daughters when only males are asked.

Answer: (d) Data inadequate

Explanation:
1. Ravindra is Tanu's maternal uncle.
2. Nothing links Bunty to Tanu's family; he is only her playmate.
3. So the data is inadequate.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (b) Cannot be determined

Explanation:
1. The only son of the grandfather of the speaker's sister is the speaker's father; his wife is the speaker's mother.
2. Her daughter is a sister of the speaker, and Priyanka is that sister's daughter.
3. If Sonam is that sister she is Priyanka's mother, otherwise her aunt, so it cannot be determined.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (b) Data inadequate

Explanation:
1. Both are grandchildren of the man, but are not brothers.
2. They could be cousins, or brother and sister, depending on genders and parents.
3. Without more data the relation cannot be fixed.

Teacher's Note:
1. Choose 'cannot be determined' only after checking whether more than one family arrangement fits all the clues.
2. Words like uncle, aunt, brother-in-law and grandchild each cover several possible relations, so test every case.

Answer: (a) Cousin

Explanation:
1. P's father's father is P's paternal grandfather; his wife is Q's maternal grandmother.
2. So P's father is a son and Q's mother is a daughter of the same couple: they are brother and sister.
3. Children of a brother and a sister are cousins, so P is Q's cousin.

Teacher's Note:
1. Follow each person's chain up to the common ancestor couple, then come back down.
2. Children of two siblings are always cousins, whatever their gender.