For challenge no. 7, you will have a time bonus of 48 hours.
Project: 4TU.AMI
Challenge:
Today, yet another explosion occured Santa’s chemistry lab. Many beards were burnt, and many eyebrows were scorched. Over dinner, the mathematics pixy Calculus learns the following facts on the explosion from the three chemistry pixies Litmus, Nucleus, and Reductus:
What is the largest integer x for which the statement of Calculus will definitely be true?
Artwork: Julia Nurit Schönnagel
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Possible answers: