How many floors does the building have including ground floor I There are 3 families in the building...........

Logical Reasoning(Master ) Data Sufficiency

How many floors does the building have (including ground floor)?

I. There are 3 families in the building and no two families live immediately above or below each other.

II. The area in which building is built has a rule that a building cannot have more than 4 floors (including ground floor).

If the data in statement I alone is sufficient to answer the question.

If the data in statement II alone is sufficient to answer the question.

If the data either in statement I alone or statement II alone are sufficient to answer the question.

If the data given in both I and II together are not sufficient to answer the question.

If the data in both the statements I and II together are necessary to answer the question.

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Explanation:

From I : Suppose 1 family stays on ground floor, then the other should be on 2nd floor, and then third family on 4th floor, or there can be any other arrangement such no two families are on adjacent floors.
From II : Maximum of 4 floors means that the building can have 0 or 1 or 2 or 3 or 4 floors.
But if both statements are combined, which says that there are 3 families and they do not stay on alternate floors and maximum can be 4 floors, it is predicted that there are 4 floors in this building.