All engineers are technical. Some technical people are artists. Some artists are not engineers. Based on this, which is definitely true?

The correct answer is B: Some technical people are engineers. Since all engineers are technical, it means at least some technical people must be engineers.

Which option completes the analogy? Heart : Blood :: Lung : ?

The correct answer is A: Oxygen. Heart pumps blood; Lungs process oxygen. The relationship is organ to substance it works with.

A is the father of B. C is the daughter of B. D is the brother of B. What is D to C?

The correct answer is A: Uncle. A is father of B, D is brother of B, C is daughter of B. So D is the brother of C's father, making D an uncle to C.

In a puzzle with A > B, C > D, B > D, C < A. Arrange in ascending order.

The correct answer is A: D B, C > D, B > D, C < A. So D < B < A and D < C < A. Combining: D < B < C < A (since B and C both greater than D, and C < A, B < A, we get D < B < C < A).

Series: 1, 1, 2, 3, 5, 8, 13, ?, 34. What is the missing number?

The correct answer is D: 21. This is the Fibonacci sequence where each number is sum of previous two. 8+13=21. Then 13+21=34.

Corporate & IT Interview Preparation

Reasoning Ability — Blood Relations

Aptitude · Reasoning · English · CS — Corporate & Campus Interview Prep

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Showing 1–10 of 50 questions in Blood Relations

Q.1 Easy Blood Relations

A is the father of B. B is the mother of C. C is the sister of D. How is A related to D?

A Grandfather

B Father

C Uncle

D Brother

Correct Answer: A. Grandfather

Explanation:

A is father of B, B is mother of C and D. Therefore, A is grandfather of D.

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Q.2 Easy Blood Relations

Looking at a photograph, Ramesh said, 'She is the mother of my mother.' Who is the woman in the photograph?

A Grandmother

B Sister

C Aunt

D Mother

Correct Answer: A. Grandmother

Explanation:

Mother of my mother = Grandmother.

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Q.3 Medium Blood Relations

Pointing to a man, a woman said, 'His mother is the only daughter of my mother.' How is that man related to the woman?

A Son

B Nephew

C Brother

D Cousin

Correct Answer: A. Son

Explanation:

The only daughter of my mother = myself. So his mother is the woman. Therefore, the man is her son.

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Q.4 Medium Blood Relations

A is the brother of B. B is the sister of C. C is the mother of D. D is the son of E. How is A related to D?

A Uncle

B Father

C Grandfather

D Cousin

Correct Answer: A. Uncle

Explanation:

A is brother of B, B is sister of C (so A and C are siblings), C is mother of D. Therefore A is uncle of D.

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Q.5 Hard Blood Relations

If X says 'Y's mother is the wife of my father's son', how is X related to Y?

A Brother

B Uncle

C Cousin

D Father

Correct Answer: A. Brother

Explanation:

My father's son = myself (X). My father's son's wife = X's wife. So Y's mother is X's wife, making Y the son of X. X is Y's father. Wait - reconsidering: Y's mother is wife of X. So X is Y's father.

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Q.6 Easy Blood Relations

Among six persons A, B, C, D, E, F: B is the son of A. D is the daughter of C. E is the sister of B. F is the mother of D. Who is the father of E?

A A

B B

C C

D F

Correct Answer: A. A

Explanation:

B is son of A. E is sister of B. Therefore, E is also child of A, making A the father of E.

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Q.7 Medium Blood Relations

In a family of five members, P is the father of Q and R. Q is the mother of S. T is the brother of P. How many males are there in the family?

A 2

B 3

C 4

D Cannot be determined

Correct Answer: D. Cannot be determined

Explanation:

P is male (father). T is male (brother). R's gender unclear. S's gender unclear. Q is female (mother). Insufficient information.

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Q.8 Medium Blood Relations

Pointing to a photograph, Arun said, 'He is the son of my mother's only son.' Who is the person in the photograph?

A Arun's father

B Arun himself

C Arun's son

D Arun's brother

Correct Answer: C. Arun's son

Explanation:

My mother's only son = myself (Arun). So the person is the son of Arun = Arun's son.

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Q.9 Hard Blood Relations

M is the mother of N. O is the father of M. P is the brother of O. How is P related to N?

A Grandfather

B Grandmother

C Uncle

D Great-uncle

Correct Answer: D. Great-uncle

Explanation:

O is father of M. P is brother of O. So P is uncle of M. M is mother of N. So P is great-uncle (great-grand-uncle) of N.

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Q.10 Hard Blood Relations

Seven people A, B, C, D, E, F, G are sitting in a row. G is to the right of F. E is to the left of F. B is to the right of C. C is to the left of A. A is to the right of E. Who is sitting in the middle?

A A

B E

C F

D C

Correct Answer: C. F

Explanation:

Arranging based on clues: C-A-E-F-G and B-C. Order: B-C-A-E-F-G-D or similar. With 7 people, 4th position is middle. After arrangement: C is in middle position.

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