If John receives the same grade in economics and Italian, and if he fails Russian, which one of the following must be...

Jaimee-Salgado July 23, 2018

Game Set Up

I had set up the game differently than in the video. I missed a couple but for the most part it worked. I didn't make the connection to list the grades and fill in the courses, instead I listed the courses and filled in the grades. Hope that makes sense. I'm looking to understand why I should have listed the grades instead. From reading the question, it didn't seem all that clear that this was the proper set up.

Create a free account to read and take part in forum discussions.

Already have an account? log in

Mehran July 25, 2018

@Jaimee-Salgado the reason is that letter grades have a natural order, i.e. A B C D F (which is E in this case).

Notice that the courses have no natural order.

Additionally, the first two conditions, which state that the grades of certain courses "are consecutive," also make it clear that the grades should be used as the base instead of the courses.

Hope that helps! Please let us know if you have any other questions.