# How would you find the heavy bottle?

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Given 10 identical bottles of identical pills (each bottle contain hundred of pills). Out of 10 bottles 9 have 1 gram of pills but 1 bottle has pills of weight of 1.1 gram. Given a measurement scale, how would you find the heavy bottle? You can use the scale only once.

posted Jul 20, 2017

1. Number the bottles
2. Take 10 pills from bottle number 1, 20 pills from 2, so on and 100 pills from 10- total of 550 pills
3. Weight all taken pills together- should be 550 grams, the deviation in grams will indicate the bottle number

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