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English and Logical Reasoning Prep GuideLogical ReasoningData Sufficiency

Directions: The below mentioned question is to be answered using the statements I and II given below. You have to determine the statement(s) which is/are sufficient to answer the question and mark the option accordingly. In a 7 storey building where the bottomost floor is numbered as 1 and the topmost floor is numbered as 7, no one lives at floor number 5. Only one person among A,B,C,D,E and F lives at one floor. Wha

Options

  1. AIf the data in statement I alone is sufficient to answer the question
  2. BIf the data in statement II alone is sufficient to answer the question
  3. CIf the data in statements I and II is necessary to answer the question
  4. DIf the data in statements I and II is not sufficient to answer the question

Correct answer

C. If the data in statements I and II is necessary to answer the question

Step-by-step solution

Checking statement I: Statement I: D lives at a gap of two floors from C. B and E live on adjacent floors where E is above B. Only A lives above F, who is at an even numbered floor. Floor number Persons 7 A 6 F 5 Vacant 4 D/C 3 E 2 B 1 C/D Here we cannot determine the floor number of D, thus the required difference cannot be found out. Hence data in statement I is not sufficient. Checking statement II: Statement II: E lives two floors below the vacant floor. Only one floor is between the floors of D and B. A lives

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