Difference between revisions of "2019 AIME I Problems/Problem 1"
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Revision as of 21:22, 14 March 2019
Problem 1
Consider the integer ![\[N = 9 + 99 + 999 + 9999 + \cdots + \underbrace{99\ldots 99}_\text{321 digits}.\]](http://latex.artofproblemsolving.com/2/5/1/2511ced2d0525f01babe6c1df6bc04741aeae61c.png)
Find the sum of the digits of 
.
Solution
| 2019 AIME I (Problems • Answer Key • Resources) | ||
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