MathDB
Sum of digits of 10^(93)-93

Source: 1993 AMC 8 Problem 20

June 28, 2011
AMC

Problem Statement

When 10939310^{93}-93 is expressed as a single whole number, the sum of the digits is
(A) 10(B) 93(C) 819(D) 826(E) 833\text{(A)}\ 10 \qquad \text{(B)}\ 93 \qquad \text{(C)}\ 819 \qquad \text{(D)}\ 826 \qquad \text{(E)}\ 833