One out of three identical coins is fake. We know that the fake coin is a different weight from the real coins. Using a scale, what is the minimum number of weighing
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Brecknell Digital Counting & Coin Scale 30lb x 0.001lb, 11-1/2 x 8-3/4 Platform
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Antique coin scale with loose weights and pilot whales, …
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Digital Pocket Scale 200 x 0.01g Fine Balance Digital Scale Coin Weighing Scales for Jewelry
The KCS-60 Coin Counting Scale is an easy-to-use, highly accurate scale for weighing coins and tokens at your laundromat. The keypad has 10
KCS Laundromat Coin Counting Scale