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      Question

      The question given below consists of 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. Read all the statement and answer the question. Seven persons L, M, N, O, P, Q, and R live on seven different floors in a seven-floor building such that the bottommost floor is numbered as 1, the floor immediately above it is numbered as 2 and so on however not necessarily in the same order. Who lives on 4 th floor? Statement I: Only three persons live between Q and P. R lives one floor below P. As many persons live below R as above L. O lives one floor below N. M doesn't live on a prime numbered floor. Statement II: P lives one floor below O. Only two persons live between P and L. Q lives one floor above A. As many persons live above Q as below M. R lives below N and O. R doesn't live on the 3 rd floor.
      A If the data given in only statement I alone is sufficient to answer the question. Correct Answer Incorrect Answer
      B If the data given in only statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
      C If the data given in either statement I or statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
      D If the data given in both the statement I and statement II together are necessary to answer the question. Correct Answer Incorrect Answer
      E If the data given in both the statement I and statement II together are not sufficient to answer the question. Correct Answer Incorrect Answer

      Solution

      From statement I alone, only three persons live between Q and P. R lives one floor below P. As many persons live below R as above L. O lives one floor below N. M doesn't live on a prime numbered floor, we get: Case 1: When Q lives on the 7th floor. Case 2: When Q lives on the 3rd floor. O lives on the 4th floor. So, the data given in statement I alone is sufficient. From statement II alone, P lives one floor below O. Only two persons live between P and L. Q lives one floor above L. As many persons live above Q as below M. R lives below N and O. R doesn't live on the 3 rd floor, we get: O lives on 4th floor. So, the data given in statement II alone is sufficient. So, data given in either statement I or statement II alone is sufficient to answer the given question. Hence, option c.

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