Maths Olympiad Prep

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Problem 373

Combinatorics Difficulty 2.0 Find the answer CEMC Pascal · Canada · 1998

The sum of the digits of a five-digit positive integer is 2. (A five-digit integer cannot start with zero.) The number of such integers is

(A) 11 (B) 22 (C) 33 (D) 44 (E) 55

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