Puzzles and Brain Teasers Pop Quiz

I have 10 boxes of 10 coins. In 9 boxes the coins weigh 1g each and in 1 box 2g. I have a digital scale. Least many uses of scale to know in which box are the 2g coins?
Choose the right answer:
Option A twice
Option B three times
Option C five times
Option D once
 eepykid posted 1年以上前
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