Difference between revisions of "2017 AMC 10B Problems/Problem 23"

Revision as of 10:38, 16 February 2017

Problem 23

Let $N=123456789101112\dots4344$ be the $79$ -digit number that is formed by writing the integers from $1$ to $44$ in order, one after the other. What is the remainder when $N$ is divided by $45$ ?

$\textbf{(A)}\ 1\qquad\textbf{(B)}\ 4\qquad\textbf{(C)}\ 9\qquad\textbf{(D)}\ 18\qquad\textbf{(E)}\ 44$

B

Revision as of 10:20, 16 February 2017 (view source) Slenderestman (talk \| contribs) (→‎Problem 23) ← Older edit		Revision as of 10:38, 16 February 2017 (view source) Lakecomo224 (talk \| contribs) (→‎Problem 23) Newer edit →
Line 5:		Line 5:


−	C	+	B

Page

Toolbox

Search

Difference between revisions of "2017 AMC 10B Problems/Problem 23"

Revision as of 10:38, 16 February 2017

Problem 23