Logical Reasoning Sufficiency

Q: How is J related to K? I. J is the only son of L. II. K is the only brother of L.

Correct Answer: Option C (Both statements together are sufficient, but neither statement alone is sufficient.). From Statement I, J is L's son. From Statement II, K is L's brother. Combining them, J is the son of K's sibling (L). Since J is male, J is the nephew of K. Both statements are required.

Q: Who is the mother of M? I. N is the sister of M's father. II. O is the wife of M's father.

Correct Answer: Option B (Statement II alone is sufficient, but Statement I alone is not.). Statement I tells us N is M's aunt, which doesn't identify the mother. Statement II states O is the wife of M's father, which means O is M's mother. Statement II alone is sufficient.

Q: How many children does X have? I. Y is the only daughter of X. II. Z and W are the only brothers of Y.

Correct Answer: Option C (Both statements together are sufficient, but neither statement alone is sufficient.). Statement I gives 1 daughter. Statement II identifies 2 brothers for that daughter. Together, X has exactly 1 daughter and 2 sons, totaling 3 children. Both are required.

Q: Is P the aunt of Q? I. P is the sister of R. II. R is the father of Q.

Correct Answer: Option C (Both statements together are sufficient, but neither statement alone is sufficient.). Statement I gives P's gender (female) and sibling. Statement II establishes R as Q's father. Together, P is the sister of Q's father, making P the aunt of Q. Both are required.

Q: How is A related to B? I. A's mother is the sister of B's father. II. B has no siblings.

Correct Answer: Option A (Statement I alone is sufficient, but Statement II alone is not.). Statement I establishes that A's mother and B's father are siblings. This makes A and B first cousins. Statement I alone is sufficient. Statement II is unnecessary data.

60 Questions

Practice Logical Reasoning Sufficiency questions with answers and step-by-step solutions. These problems are curated from recent campus placement test papers (TCS, Infosys, Wipro, Cognizant, Accenture) and competitive government exams (SSC CGL, Bank PO, RRB NTPC, UPSC).

Quick Mode: Practice Questions Timed Mock Test

Logical Reasoning Sufficiency: Directions & Problem Statements Shared for questions below

DirectionsSet 1: Blood Relations

Data Sufficiency: Logical Reasoning (Medium to Hard Level)

Evaluate the two statements and determine which of the options is correct.

How is J related to K?
I. J is the only son of L.
II. K is the only brother of L.

medium

Who is the mother of M?
I. N is the sister of M's father.
II. O is the wife of M's father.

medium

How many children does X have?
I. Y is the only daughter of X.
II. Z and W are the only brothers of Y.

medium

Is P the aunt of Q?
I. P is the sister of R.
II. R is the father of Q.

medium

How is A related to B?
I. A's mother is the sister of B's father.
II. B has no siblings.

medium

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Logical Reasoning Sufficiency

How is J related to K?
I. J is the only son of L.
II. K is the only brother of L.

Community Discussion & Shortcut Formulas

Who is the mother of M?
I. N is the sister of M's father.
II. O is the wife of M's father.

Community Discussion & Shortcut Formulas

How many children does X have?
I. Y is the only daughter of X.
II. Z and W are the only brothers of Y.

Community Discussion & Shortcut Formulas

Is P the aunt of Q?
I. P is the sister of R.
II. R is the father of Q.

Community Discussion & Shortcut Formulas

How is A related to B?
I. A's mother is the sister of B's father.
II. B has no siblings.

Community Discussion & Shortcut Formulas