MathDB
2022 A Individual #12

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April 28, 2022
2022 A Individual

Problem Statement

For a certain value of xx, the sum of the digits of 10x−10010^x - 100 is equal to 4545. What is xx?
<spanclass=′latex−bold′>(A)</span>4<spanclass=′latex−bold′>(B)</span>5<spanclass=′latex−bold′>(C)</span>6<spanclass=′latex−bold′>(D)</span>7<spanclass=′latex−bold′>(E)</span>8<span class='latex-bold'>(A) </span>4\qquad<span class='latex-bold'>(B) </span>5\qquad<span class='latex-bold'>(C) </span>6\qquad<span class='latex-bold'>(D) </span>7\qquad<span class='latex-bold'>(E) </span>8
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