The theory behind teaching college students higher maths isn’t that they will need to solve quadratic equations in real life, but that it teaches logical thinking. I’m not sure I believe that anymore. There are a lot of stupid people with college degrees.
This is a logic puzzle. You won’t need math to solve it.
You are shown a set of four cards. Each card has a number on one side, and a color on the other side. We would like to test the truth of the following statement:
If a card shows an even number on one face, then its opposite face is blue.
What is the minimum number of cards that must be turned over to prove that statement is true? Which cards must be turned over?
This is an open thread.