Daily Olympiad: Logical Reasoning - Blood Relations [20260511]

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

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1. A is the son of B's father's nephew. How is B related to A?

Solution
Correct: A
B's father's nephew is B's brother (as nephew means son of sibling). A is the son of B's brother, making B the uncle of A. Thus, B is A's uncle.

2. Pointing to a photograph, A says, "His mother's only son is my husband." How is A related to the person in the photograph?

Solution
Correct: D
The person in the photo is A's mother's only son, meaning A's mother has one son (A's brother). But A married him, so A is his wife. Therefore, A is the wife of the person photographed.

3. X is the granddaughter of Y. How is Y related to X?

Solution
Correct: D
Y is either X's grandfather or grandmother. Since gender is not specified in the question, the general term is "Grandparent."

4. If P is the daughter of Q's brother's only sister, how is P related to Q?

Solution
Correct: C
Q's brother's only sister is Q herself (if Q is female) or Q's sister (if Q is male). P is the daughter of this relation, making P Q's niece.

5. How is the wife of A's maternal uncle related to A?

Solution
Correct: A
A's maternal uncle is one of A's mother's sons. His wife would be A's aunt (mother's brother's wife), so the relationship is aunt.

6. R is the mother of S and T. How is S related to T?

Solution
Correct: D
R is S and T's mother, but no information is given to establish the gender of S or T. S could be brother, sister, or gender unknown. Hence, the relationship cannot be determined.

7. P is the son of Q's father. How is Q related to P?

Solution
Correct: D
Q's father is P's father, meaning Q and P are siblings. If Q is male, Q is P's brother; if female, sister. Since gender is unknown, the relationship cannot be determined.

8. M is the cousin of N's father. How is N related to M?

Solution
Correct: D
M is related to N's father as his cousin, making M N's aunt or uncle (since M is older). Gender of M is unspecified, so N could be nephew or niece. Since gender is not given, the answer cannot be determined.

9. A is the mother of D, who is the son of C. How is C related to D?

Solution
Correct: D
C is D's parent. Since A is D's mother, C could be the father (if A and C are married) or an unrelated parent. No clear relationship given.

10. E is the sister-in-law of F. How is F related to E?

Solution
Correct: D
Sister-in-law implies F is married to E's sibling (if F is male) or is the sister of E's husband/spouse (if F is female). Insufficient data to determine exact relationship.

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