# Rearranging The Class Schedule

Logic Level 2

Mark has signed up for 10 subjects. Every weekday, 2 of the 10 subjects are taught. When the semester ended, Mark was issued a new timetable for the next semester. Mark noticed that all of the changes were:

• Geography was on Thursday and now it is on Wednesday.
• Chemistry was on Thursday and now it is on Tuesday.
• Biology was on Friday and now it is on Thursday.
• History was on Tuesday and now it is on Friday.
• Physics was on Wednesday and now it is on Tuesday.
• Math was on $$\boxed{ \begin{matrix} \quad \quad \\ \quad \quad \end{matrix} }$$ and now it is on $$\boxed{ \begin{matrix} \quad \quad \\ \quad \quad \end{matrix} }$$.

On which day did Mark use to have math class?

×

Problem Loading...

Note Loading...

Set Loading...