Puzzles and Riddles - Post your best stumpers!
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(#5261349) Re: Four Coins
Posted by Dragon Jr on 23 Jul 2021 at 12:19PM
Actually, if a genuine coin has a mass of 15 grams, then a fake coin would have a mass of either 12 grams or 18 grams (3 grams less or 3 grams more than a genuine coin).
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