Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

You can first determine?

  1. May 18, 2012 #1
    Question:

    Two birds in the tree, the hunter shot one.

    Ask:

    How many birds in the tree?Live or die?

    You need to determine the answer


    I am a chinese,my english is poor.
    This is a certainty and uncertainty question!
    How to determine?
    The number of birds,live or die?

    Can somebody help me to translate chinese into english?
     
  2. jcsd
  3. May 18, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    welcome to pf!

    hi godsaveme! welcome to pf! :smile:

    there are two birds in a tree, and a hunter shoots one

    how many birds are there now in the tree, and are they dead or alive?​

    this is a common-sense question, not a maths question! …

    what do you think the answer is? :wink:
     
  4. May 18, 2012 #3
    To me, it sounds like he is trying to articulate this trick question I've heard here and there in the past.

    The question comes in various forms but basically is, 20 birds are in a tree. A hunter shoots one, how many are left?

    The answer is that only one is left, the dead one. The others have flown off at the sound of the gun shot.
     
  5. May 18, 2012 #4
    Re: welcome to pf!


    When a bird in the tree, how do you determine that it is dead or alive?
     
  6. May 18, 2012 #5
    that means:How do change twice judge or even several times to judge into the first judgment
     
    Last edited by a moderator: May 18, 2012
  7. May 18, 2012 #6

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    When a bird is in the tree, how do you determine whether it is dead or alive?​

    That depends on what the word "shot" means in the original question.
     
  8. May 18, 2012 #7
    You didn't say what the hunter shot. "The hunter shot one." One what? One giraffe? There are two birds in the tree as per your definition.
     
  9. May 18, 2012 #8
    Re: welcome to pf!

    you can say,there are 0,1,2 birds in the tree
    but when there is one bird in the tree ,you can not sure it is dead or alive.

    you get three answers of this question,
    but we get four answers,that means You have been misled by the figures
     
    Last edited by a moderator: May 18, 2012
  10. May 18, 2012 #9
    Re: welcome to pf!

    and we can sure
    but how?
     
  11. May 18, 2012 #10
    made it to die
     
  12. May 18, 2012 #11
    when there are many birds in the tree,how can you judge?
    we judge only once
     
  13. May 18, 2012 #12
    This question is a problem of different points
     
    Last edited: May 18, 2012
  14. May 18, 2012 #13
    lol, they both die... eventually
     
  15. May 18, 2012 #14

    Ryan_m_b

    User Avatar

    Staff: Mentor

    Did the hunter shoot one with a camera :wink:
     
  16. May 19, 2012 #15
    Can anyone tell me, how can I do?
    Because i am from china,and my english is poor.
    Do knowledge borders?
     
  17. May 19, 2012 #16
    when there is one bird in the tree,how can you judge it is dead or alive?
    You have a 50% probability of guessing right
    If you're lucky,you will be right.Otherwise, you're wrong.
     
  18. May 19, 2012 #17
    Is this science?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: You can first determine?
  1. Can you prove you exist? (Replies: 151)

  2. How honest can you be? (Replies: 21)

Loading...