Puzzle time#1 Got bored at work? Give some work to your brain

in puzzle •  7 years ago  (edited)

Don't get bored at work by doing same shit again and again. Let's do some puzzling to refresh your mind.

Let's start
You have 16 marbles and one balancing scale. One of the marbles is heavier than the others, while 15 are of the same weight. Using the scales three times or less, identify the odd marble.

Answer in comment box. Soon planning for rewards to quicker correct answer.

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Answer:
Divide the 16 marbles into 3 parts. 7-7-2.

  1. First weight 7-7. If both are same then weight remaining 2. here you will find heaviest one. -----------> completed in 2 steps.

  2. If first 7-7 is not equal, choose group of heaviest 7 marbles.

  3. Now divide this into 3-3-1.

  4. Weight group of 3-3. If same then left 1 marble is heaviest. -----------> completed again in 2 steps.

  5. If not then choose group of heaviest 3 marbles and weight them into 1-1-1. -------------> Here completed in 3 steps.