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Thread: Weighing Problem - paraphrased: There are 10 bags of gold coins...

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    Weighing Problem - paraphrased: There are 10 bags of gold coins...

    There are 10 bags of gold coins.

    Each bag contains 1000 identical (looks) coins.

    8000 coins in 8 bags - each coin weighs 10 gms.

    In two (2) other bags, there are 2000 coins each weighing 9 gms.

    We have an electronic balance that can weigh upto 100 kg very accurately.

    How would you identify both the bags containing coins weighing 9 gms, by using the balance only once?
    Last edited by Subhotosh Khan; 06-10-2017 at 12:20 PM.

  2. #2
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    Hint: 1,2,4,8,.....
    I'm just an imagination of your figment !

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    deleting thread

    how do I delete this thread?

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    Quote Originally Posted by Djack94 View Post
    how do I delete this thread?
    Why do you want to delete it?
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

  5. #5
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    Quote Originally Posted by Djack94 View Post
    There are 10 bags of gold coins.

    Each bag contains 1000 identical (looks) coins.

    8000 coins in 8 bags - each coin weighs 10 gms.

    In two (2) other bags, there are 2000 coins each weighing 9 gms.

    We have an electronic balance that can weigh upto 100 kg very accurately.

    How would you identify both the bags containing coins weighing 9 gms, by using the balance only once?
    Another hint:

    1, 4, 9, 16, 25........81, 100.

    Edit: No that does not work .... 42 + 72 = 12 + 82
    Last edited by Subhotosh Khan; 06-19-2017 at 07:01 PM.
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

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