Fizz-Buzz!
In the game 'Fizz - Buzz', players take turns to say consecutive whole numbers starting at
, but in place of each number which contains the digit '
' or which is divisible by
, one has to say 'Fizz'.
On the other hand, each number which contains the digit ' ' or which is divisible by , one has to say 'Buzz'.
How many numbers from to do not get replaced by 'Fizz' or 'Buzz'?
Image taken from here
The answer is 30.
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1 solution
The Fizz's number: 5 , 1 0 , 1 5 , 2 0 , 2 5 , 3 0 , 3 5 , 4 0 , 4 5 , 5 0 .
The Buzz's number: 7 , 1 4 , 1 7 , 2 1 , 2 7 , 2 8 , 3 5 , 3 7 , 4 2 , 4 7 , 4 9 .
3 5 will still be counted once.
Therefore, the answer is 3 0 .