Wednesday, August 28, 2024

Mensa Math Brain Teasers

1) A straight wooden rod (think of it like a line segment) is cut at two arbitrary points to form three smaller pieces. What is the probability that these three pieces can form a triangle?

2)George and Jeff are playing a simple dice game. They are taking turns and whoever throws a 7 first wins. Jeff goes first.  Find the probability that Jeff wins the game. What is the average length of the game?

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