English and Logical Reasoning Prep GuideLogical ReasoningData Sufficiency
Directions: Each of the following consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question: How is Isha definitely related to Vidhi? Statement I : Isha's mother is sister of Vidhi's father. Statement II : Vidhi is the daughter of Isha's grand-father's only son.
Options
- AIf the data in statement I alone is sufficient to answer the question, while the data in statement II alone is
- BIf the data in statement II alone is sufficient to answer the question, while the data in statement I alone is
- CIf the data either in statement I alone or in statement II alone is sufficient to answer the question.
- DIf the data in both statement I and II together are not sufficient to answer the question.
Correct answer
D. If the data in both statement I and II together are not sufficient to answer the question.
Step-by-step solution
Checking Statement I: Statement I: Isha's mother is sister of Vidhi's father. Reference: Isha's mother is sister of Vidhi's father. Inference: Here, we can observe that a direct relationship between Isha and Vidhi can't be established as Isha's gender is not known. Clearly, Statement I alone is not sufficient to answer the question. Checking Statement II: Statement II: Vidhi is the daughter of Isha's grand-father's only son. Reference: Vidhi is the daughter of Isha's grand-father