How to find which bucket is having the 11g coin .

There are 10 buckets and one digital weighing machine .
9 buckets with 10g of coin in each and one bucket with 11g coin .how do we find out which bucket is having the 11g coin in 1 try .

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Ankit

  • Nov 20th, 2014
 

Take the number of coins equal to bucket number from each bucket. So, from the 1st bucket you take 1 coin, from the 2nd bucket you take 2 coins & so on & so Forth. So the sum of all the wieghts will be 10*1 +10*2 +........ 10*11 - if alll the coins are of the samw wieght. so the difference you get in wieght will be equal to bucket number

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