Q:

Solve $\displaystyle \frac{2}{5} (2-3e)u < 0 $ to find a range for $\displaystyle e$.

My Problem:

Is it $\displaystyle e> \frac{2}{3}$ or $\displaystyle e < \frac{2}{3}$. I'm getting the answer as $\displaystyle e < \frac{2}{3}$ but the mark scheme says that it is $\displaystyle e> \frac{2}{3}$. Can someone confirm the correct answer? Thanks in advance.