MathDB
AJHSME 1991 Problem 20

Source:

June 24, 2011

Problem Statement

In the addition problem, each digit has been replaced by a letter. If different letters represent different digits then C=C=
[asy] unitsize(18); draw((-1,0)--(3,0)); draw((-3/4,1/2)--(-1/4,1/2)); draw((-1/2,1/4)--(-1/2,3/4)); label("AA",(0.5,2.1),N); label("BB",(1.5,2.1),N); label("CC",(2.5,2.1),N); label("AA",(1.5,1.1),N); label("BB",(2.5,1.1),N); label("AA",(2.5,0.1),N); label("33",(0.5,-.1),S); label("00",(1.5,-.1),S); label("00",(2.5,-.1),S); [/asy]
(A) 1(B) 3(C) 5(D) 7(E) 9\text{(A)}\ 1 \qquad \text{(B)}\ 3 \qquad \text{(C)}\ 5 \qquad \text{(D)}\ 7 \qquad \text{(E)}\ 9