Problem bank

Problem 22 of 333MediumBrainteaserP022

Pirate gold

  1. 5 rational pirates have 100 gold coins. Starting with the most senior, each proposes a split. All living pirates (including proposer) vote; if at least half approve, it passes. Otherwise the proposer dies and the next-senior proposes. Pirates prefer (in order): survive, maximize gold, throw others overboard. What does pirate 1 propose?