Question
A question is given, followed by two statements
numbered (I) and (II). You have to decide whether the data provided in the statements is sufficient to answer the question. Read both the statements and select the appropriate answer. Seven persons R, S, T, U, V, W, and X sit in a linear row and face north direction. Who sits immediate right of X? Statements: (I) T sits third to the right of R. Only two persons sit between R and X. S sits immediate left of V. (II) V sits third to the left of U. T sits immediate right of U. X sits second to the left of V.Solution
From statement I alone, T sits third to the right of R. Only two persons sit between R and X. S sits immediate left of V. We get: Case 1: X S V R U/W W/U T Case 2: X U/W W/U R S V T As, from the information given in statement I, we cannot determine the person, who sits immediate right of X. So, data in statement I alone is not sufficient to answer the question. From statement II alone, V sits third to the left of U. T sits immediate right of U. X sits second to the left of V. We get: X _____V ______ ______ U T The positions of R, S and W, cannot be determined. So, we cannot determine the person, who sits immediate right of X. Combining statements I and II together, we get: X S V R W U T So, combining statements I and II together, we get S sits immediate right of X. Therefore, data in statements I and II together is sufficient to answer the question
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