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(#5261405) Re: Four Coins
Posted by Jools on 23 Jul 2021 at 3:53PM
think I worked it out.

take any 2 coins and weigh them against each, they will either balance or not. Replace 1 with a 3rd coin.

if the first 2 coins balance and so does the 3rd, the remaining 4th is fake
if the first 2 coins balance and the 3rd doesn't, it is fake
if the first 2 coins don't balance, but the 3rd does, the one removed is fake
if the first 2 coins don't balance, and the 3rd doesn't, the original remaining in the balance is fake
div>Replies to this message:
SubjectPosted ByDate & Time
5261407Re: Four Coins Dragon Jr23 Jul 2021 3:56PM
5261405Re: Four Coins Jools23 Jul 2021 3:53PM

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