Six persons, Anika, Dilip, Ehsan, Ira, Karan and Shirin, live on the six floors of a building, one person per floor. The lowest floor is numbered 1 and the top floor is numbered 6. Exactly two persons live between Karan and Anika. Dilip lives on the floor immediately above Ira. Dilip lives on an even-numbered floor. Anika lives on an even-numbered floor. Exactly three persons live between Ira and Ehsan. On which floor does Shirin live?
Correct answer C. Floor 4
Explanation
From floor 1 upwards the only valid order is Ira, Dilip, Karan, Shirin, Ehsan, Anika. Hence Shirin lives on floor 4.
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