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Apple slide 529 Posted 8 years ago
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A king has 10 gold coinmakers. 1 of them is scamming the king by making his coin a tenth of ounce short. King has scale he can only use 1 time to figure who scammer is. What does he do?
Top answer
Here's a hint:If you weighed five coins, they should be 10 ounces. But if one of them is counterfeit, the weight would be one ounce less. Try that before you read the next hint:Okay, you're still stuck.
- Here's a hint:If you weighed five coins, they should be 10 ounces.
- But if one of them is counterfeit, the weight would be one ounce less.
- Try that before you read the next hint:Okay, you're still stuck.
- but in case you're still stuck, here's one last hint:If you take one coin from the first stack, two coins from the secondstack, and so on, then if the net result is one ounce too light you'll know the first stack is counterfeit, if it's two ounces too light you'll know it's the second stack, and so on.
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1 Answers
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Here's a hint:If you weighed five coins, they should be 10 ounces. But if one of them is counterfeit, the weight would be one ounce less. Ifthree of them were counterfeit, the weight would be three ounces less.In other words, your one weighing will determine how many counterfeitcoins you have on the scale.Try that before you read the next hint:Okay, you're still stuck. Try to figure out a wa
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