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2010 UNCO Math Contest II Problems/Problem 6

Revision as of 15:18, 19 October 2014 by Timneh (talk | contribs) (Created page with "== Problem == <math>A</math> is a <math>4</math>-digit number <math>abcd</math>. <math>B</math> is a <math>5</math>-digit number formed by augmenting <math>A</math> with a <math...")
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Problem

$A$ is a $4$-digit number $abcd$. $B$ is a $5$-digit number formed by augmenting $A$ with a $3$ on the right, i.e. $B=abcd3$.

$C$ is another $5$-digit number formed by placing a $2$ on the left $A$, i.e. $C=2abcd$. If $B$ is three times $C$, what is the number $A$?


Solution

See also

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