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plainglazed last won the day on February 22

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About plainglazed

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    Abuse of PoWers
  • Birthday 11/21/1964

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  1. Balancing weights

    yes, but...
  2. Coin hunt

  3. Heads up

  4. Balancing weights

    for a set of five...
  5. Balancing weights

    another seven and I think an example of six? still working on five...
  6. Next card is Red

    yeah, think I agree with that statement, dealer.
  7. Next card is Red

    better than 50%?
  8. Green and Yellow hats again, but harder

    I think I see the pattern here and am encouraged by the beauty of binary symmetry so here goes:
  9. Worth the Weight

    @aiemdao - Yes, nice solve indeed Aiem. Well done. @bonanova - thanks.
  10. Worth the Weight

    hey bn - Thanks for getting this one started. You are correct in all you say above including your initial summary of the problem. Have edited the OP to include that explanation. I assure you there is a scheme in which one can guarantee finding seven heavy coins. Perhaps start off by finding one guaranteed heavy coin in two uses of a balance scale. Or not. I have no doubt you or others here will discover the method for finding seven heavy dimes.
  11. Worth the Weight

    You are shown a pile of dimes all of which have one of two distinct weights differing by a small amount not detectable by feel. Forty eight dimes are separated from this pile and you are told of these forty eight, light ones are a dime a dozen (literally - i.e. 44 heavy dimes and 4 light dimes). Using a balance scale twice, find seven heavy dimes. EDIT: for clarification
  12. Traffic jams

    okay, not too proud to start this off with some probably way simplistic maths:
  13. Physics fun

    Not Rats
  14. Physics fun

    had thought perhaps then perhaps rats, still thinking
  15. Physics fun