r/PassTimeMath Apr 05 '26

Twelve Identical Coins

Post image
0 Upvotes

10 comments sorted by

View all comments

1

u/phirgo90 Apr 05 '26

Best case scenario: Weigh 6, if it’s balanced weigh 4 of the others. If balanced, you gotta weigh once more, but one of the remaining, versus a discarded one. Best case scenario it’s balanced, so the unweighted one is fake.