AHSME 1951 Problem 45

If you are given $\log 8\approx .9031$ and $\log 9\approx .9542$, then the only logarithm that cannot be found without the use of tables is: $\textbf{(A)}\ \log 17 \textbf{(B)}\ \log\frac{5}{4} \textbf{(C)}\ \log 15 \textbf{(D)}\ \log 600 \textbf{(E)}\ \log .4$