Puzzle: Five clerks (Ana, Ben, Cara, Dan and Eli) sit at desks numbered 1 to 5 from left to right. Cara sits at desk 3. Eli sits immediately to the left of Ana. Ben sits somewhere to the left of Dan. Dan does not sit at desk 5. Who sits at desk 5?
Correct answer: A. Ana
The only arrangement is: desk 1 Ben, desk 2 Dan, desk 3 Cara, desk 4 Eli, desk 5 Ana. Ana is at desk 5 because Eli must be immediately to her left and the pair cannot be at desks 1 and 2.
hard