1968 AHSME Problems/Problem 33

Problem

A number $N$ has three digits when expressed in base $7$ . When $N$ is expressed in base $9$ the digits are reversed. Then the middle digit is:

$\text{(A) } 0\quad \text{(B) } 1\quad \text{(C) } 3\quad \text{(D) } 4\quad \text{(E) } 5$

$\fbox{}$

1968 AHSME (Problems • Answer Key • Resources)
Preceded by Problem 32	Followed by Problem 34
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