But society also wants students to perform well academically. So the public schools cannot do all that society wants them to do. Logic puzzle 1. You are planning your schedule for your last year at a college. You need calculus, English, history, literature, philosophy, and physics.
Philosophy is only available fall semester and history is only available summer.
Calculus is a prerequisite for physics and English is a prerequisite for literature. Logic puzzle 2. Jack's parents are going to his school for parents' night. They are supposed to visit his classes, but Jack forgot to give them a copy of his schedule. They each remember a few things Jack told them about his classes.