How is Sarita related to Mohan? Statements: Mohan is the only son of Sarita's…
2025
How is Sarita related to Mohan?
Statements:
Mohan is the only son of Sarita's father.
Ramesh is Mohan's father.
- A.
Both statements together are necessary to answer the question, i.e. neither statement alone is sufficient
- B.
Statement 2 alone is sufficient to answer the question, but Statement 1 alone is not sufficient
- C.
Neither statement alone, nor both statements together, are sufficient to answer the question
- D.
Statement 1 alone is sufficient to answer the question, but Statement 2 alone is not sufficient
Attempted by 6 students.
Show answer & explanation
Correct answer: D
Concept: In Data Sufficiency, a statement is "sufficient" only when it independently and unambiguously fixes the exact relationship or value asked for, without relying on any assumption beyond what is stated. For family-relation puzzles, sharing the same named parent (here, the same father) directly establishes a sibling relationship.
Statement 1: Mohan is the only son of Sarita's father. This directly states that Mohan's father and Sarita's father are the same person, so Mohan and Sarita are children of the same father. Since the question asks how Sarita (a daughter) is related to Mohan, this single fact already fixes Sarita as Mohan's sister. Statement 1 ALONE is therefore sufficient.
Statement 2: Ramesh is Mohan's father. This only supplies a name for Mohan's father; it makes no mention of Sarita or her father at all, so it establishes no connection between the two people. Statement 2 ALONE is NOT sufficient.
Cross-check: By the standard convention of Data Sufficiency questions, "both statements together are necessary" is the correct classification only when NEITHER statement is individually sufficient. Here, Statement 1 by itself already establishes the complete relationship (Sarita is Mohan's sister), so this fact alone rules out both the "both together necessary" and "neither sufficient" classifications; adding Statement 2 (a mere name, unconnected to Sarita) does not change this conclusion in any way.
Result: Statement 1 alone is sufficient to answer how Sarita is related to Mohan; Statement 2 alone is not; and combining both adds nothing beyond Statement 1.