Daily Olympiad: Logical Reasoning - Blood Relations [20260512]

Challenge yourself with today's UPSC CSAT practice! This test covers 'Blood Relations' for Logical Reasoning (UPSC CSAT - Graduate). Level: Medium | Duration: 40 mins.

🏆 Free — No Login Required

← Back to All Olympiads

1. Pointing to a boy, X says, 'His father is my father’s only brother.' Who is X to the boy?

A. Father B. Uncle C. Nephew D. Brother

Solution

Correct: D

The boy's father is X's father's only brother, meaning X and the boy are brothers (since they share a father). Thus, X is the boy's brother.

2. Y says to Z, 'My mother is your sister’s mother.' What is Y related to Z?

A. Son B. Cousin C. Brother D. Father

Solution

Correct: C

Since both Y and Z share the same mother, they are siblings. Hence, Y is Z's brother or sister.

3. A is B's cousin. B's father is C’s brother. How is A related to C?

A. Niece B. Sister C. Cousin D. Daughter

Solution

Correct: A

B’s father is C’s brother, so A’s father is the brother of C’s child. Therefore, A is the niece/nephew of C.

4. X’s sister is the mother of Y’s son. How is X related to Y?

A. Sister B. Aunt C. Uncle D. Brother

Solution

Correct: B

X’s sister is Y’s mother-in-law (since she is the mother of Y’s child). Thus, X is Y’s brother or sister-in-law.

5. P says to Q, 'Your father is my father’s only son.' How is P related to Q?

A. Uncle B. Grandfather C. Father D. Brother

Solution

Correct: C

P’s father’s only son is P himself. Thus, P is Q’s father.

6. M’s father is N’s son. How is N related to M?

A. Father B. Uncle C. Grandfather D. Brother

Solution

Correct: C

If N’s son is M’s father, N is M’s grandfather.