Exams › IBPS PO › Reasoning
Seven persons B, H, I, L, M, R and S live in a seven-floor building (floor 1 is the bottom floor and floor 7 is the top floor). Statements: I. Only three persons live between M and I, and I lives below M. One person lives between B and L. L lives three floors above I. II. S lives on an odd floor, not the top or bottom floor. Two persons live between R and L. H does not live above M. Question: Who lives on floor 2?
- If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.
- If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.
- If the data either in statement I alone or in statement II alone is sufficient to answer the question.
- If the data in both statements I and II together are necessary to answer the question.
Correct answer: If the data in both statements I and II together are necessary to answer the question.
Solution
Statement I alone does not uniquely determine who is on floor 2, and statement II alone is also insufficient. When both statements are combined, the floor arrangement becomes constrained enough to answer the question. Therefore, both statements together are necessary.
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