### Brain Teasers

# 13, 21, 34, 55, 89, X

Series
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.Series

13, 21, 34, 55, 89, X

What is X?

What is X?

### Hint

Fibonacci### Answer

144Based on the Fibonacci sequence, where a number is the sum of the two numbers before it.

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## Comments

good idea not starting from the begining

Hello, I am the writer of this teaser and want to apolagize for a typo i made. In the hint fibionacci was supposed to be fibonacci.

Thanks,

Christopher

Thanks,

Christopher

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