08-31-2017, 04:37 PM
As for the the problem itself, I agree that its just ambiguously written (and therefor poorly written). This is due to the fact that math (including arithmetic) is meant to be written in such a way that its meaning is explicitly clear to anyone who understands the symbolic notation it contains.
![[Image: 4CV0TeR.png]](https://i.imgur.com/4CV0TeR.png)