In a building of infinite floors, each floor number is the sum of the previous two. If the first floor is 1 and the second is 1, what is the number on the 10th floor?

Category: Math · Difficulty: expert

Hint: This sequence is related to a famous rabbit problem.

Answer

55

Explanation

This riddle follows the Fibonacci sequence, where each number is the sum of the two preceding ones.

This is a expert math riddle — one of the harder riddles here. The answer is 55.

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