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. 6 persons from A to F live in a 7-floored building such that the bottomost floor is numbered as 1 and the topmost floor is numbered as 7, nobody lives at floor number 5. Only one person lives at one
Options
- AIf the data in statement I alone is sufficient to answer the question
- BIf the data in statement II alone is sufficient to answer the question
- CIf the data in statements I and II is necessary to answer the question
- DIf the data in statements I and II is not sufficient to answer the question
Correct answer
A. If the data in statement I alone is sufficient to answer the question
Step-by-step solution
Checking statement I: Statement I: F lives at an odd numbered floor. D lives at a gap of two floors from F. B and C live on adjacent floors where C is above B. Only A lives above E. Floor number Persons 7 A 6 E 5 Vacant 4 D 3 C 2 B 1 F Clearly, one person lives below B. Hence data in statement I is sufficient. Checking statement II: Statement II: C lives two floors below the vacant floor. Only one floor is between the floors of D and B. A lives just above E. B is adjacent to C. Following three cases are possible wi