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himanshuxain

  • 3 years ago

Divide 40 kg mass into 4 piece such that you can weigh from 1 to 40 kg from those 4 masses

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  1. hei
    • 3 years ago
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    1,19,2,18?

  2. vishal_kothari
    • 3 years ago
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    what's the right answer?

  3. himanshuxain
    • 3 years ago
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    ans to nahi pata to he post kara he lekin 1,2,19,18 nahi he

  4. vishal_kothari
    • 3 years ago
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    ho bhi nahi sakta?

  5. hei
    • 3 years ago
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    ?? right or wrong?

  6. vishal_kothari
    • 3 years ago
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    it's wrong..

  7. hei
    • 3 years ago
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    i am not really understand wat the question want >.>

  8. vishal_kothari
    • 3 years ago
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    himanshu explain the question..

  9. himanshuxain
    • 3 years ago
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    yaar 40kg ka weight ko 4 piece me torna he jisse 1kg se 40 kg ke sabhi mass 1 ya 1 se jada piece ka use karke sabhe ko weigh karna he

  10. abayomi
    • 3 years ago
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    1,3,9,27

  11. nubeer
    • 3 years ago
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    hmm don't think this is right either.

  12. abayomi
    • 3 years ago
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    i assure u it is. the problem is an old one from Bachet's 'Problems plaisants et delectables'

  13. nubeer
    • 3 years ago
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    well then tell me how with this combination u can get a weight of 2,5,7,8....... ?

  14. abayomi
    • 3 years ago
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    you have a point there, the version i remember did not place a restriction of 4 weights to the solution.

  15. nubeer
    • 3 years ago
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    ya i guess this restriction is just the problem here

  16. mathmate
    • 3 years ago
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    You can weigh a 2 by putting a three on one side, and a one on the other. Ditto for 5 (9 vs 3+1)

  17. Diarmuid_Wrenne
    • 3 years ago
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    It's an old problem from pre revolution France. The conventional way of thinking was that the mass being weighed on the balance had to be measured with a number of the weights on the opposite side. The solution here is to realise that you can also add weights to the side being weighed. So 1 is weighed conventionally but 2 is weighed with a 3 on one side and a 1 being added to the side being weighed, etc 1, 1 2, 3, -1 3, 3 4,3,1 5,9,-3,-1 6,9,-3 7,9,1,-3 8,9,-1 9,9

  18. him1618
    • 3 years ago
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    1,3,9,27....is right

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