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Math and Logic

The Brillianty Derby

Aditya, Basil, Cecilia, and Dimitri each teach one class at 8:00,\text{8:00}, 9:00,\text{9:00}, 10:00,\text{10:00}, or 11:00.\text{11:00}. At those times, they each teach algebra, calculus, geometry, or probability. Everybody teaches at a different time, and everybody teaches a different class.

For each teacher, we’d like to know when they teach and which course they teach. Given a set of clues, how can we figure it out?

These are the makings of a logic grid puzzle. To work through this problem, keep reading. Or, skip to the challenge for a puzzle of your own.

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