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How many of the natural numbers from 1 to 800 inclusive, contain the digit 6 at least once?

 May 8, 2022
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There are 19 integers between 1 and 100 with at leat one 6.

 

19  x  7 ==133 between 1 and 800

 

there are 100 numbers between 600 and 699

 

Total ==133 + 100 ==233 integers that have at least one 6

 May 8, 2022

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