Problem 150

Converting each of the improper fractions to a mixed fraction, we get $\frac52=2\frac12, \frac{11}{4}=2\frac34,$ $\frac{11}{5}=2\frac15, \frac{13}{4}=3\frac14,$ and $\frac{13}{5}=2\frac35$.

Of the five answers given, the number that lies between 3 and 4 on a number line is $3\frac14$ or $\frac{13}{4}$.