In a pile, there are 11 coins: 10 coins of common weight and one coin of different weight (lighter or heavier). They all look similar.
Using only a balance beam for only three times, show how you can determine the 'odd' coin.
Open problem (i cannot solve this myself): how many more coins (with the same weight as the ten) can we add to that pile so that three weighing still suffices? My conjecture is zero, though my friend guessed that adding one is possible. The best bound we can agree upon is < 2.
The odd coin is a mysterious tale where a unique coin holds a secret power. Its origins trace back to a hidden world where ancient traditions meet modern technology. This intriguing narrative unfolds as characters embark on a quest to unlock its potential. Much like discovering a hidden gem on a
เว็บแทงบอล (football betting website), the story captivates readers with unexpected twists and turns, leaving them eager to uncover the coin's true significance.
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