Does this freezing point depression problem make sense?

[![enter image description here](https://i.stack.imgur.com/ylzZX.png)](https://i.stack.imgur.com/ylzZX.png)


The solvent is water. Pure water has a freezing point of 0 degrees Celsius. How come, in this problem, the addition of solute results in an elevation of the freezing point from 0 to 0.46 degrees C? Is this possible? Or is this question just flawed? 


