An elevator can only go up or down in increments of 3 floors. If you start on the 12th floor and go up twice and down once, which floor are you on?
Category: Math · Difficulty: hard
Hint: Count your movements carefully.
Answer
15th floor
Explanation
Starting at 12, going up 3 floors twice gets you to 18, then down 3 brings you to 15.
This is a hard math riddle — a tricky one that takes a little thought. The answer is 15th floor.
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