dea
2003-08-23 14:05:55 |
math puzzles i need help please!!
hey im new here i have this summer math assignment to do and they are puzzles...if you wanna help here is one.
Fifty gold coins are presented to you, but onee of the fifty is a fake. you are given a balacne scale (2 trays that will balance if both contain the same weight) and are told that the fake gold coin weighs more that each of the identical real ones. can you determine the least number of times you must weigh coins to guarantee discovery of the fake coin??
a group of students went to dinner together and decided to split the bill evenly but,, before the check arrives, 2 of the studnets left the restaurant. the total bill for all was $63. the mathematcis student discovers that if each of the students remaining pays $2 extra,, the bill will be paid in full. how many students originally sat down to dinner???
a 40 pound stine used for weighing feed on as anitque faemers balance scale broke apart into 4 pieces. (a balance scale consists of 2 trays that will balance if each possesses the same weight.) those 4 pieces can now be used togehter or seperately to weigh any amount in whole pound increments from 1 pound to 40 pounds. what are the weights of those four stone pieces>>?????
a box contains 3 black and 2 white hats. 3 men standing i a line are facing forward and can see only the person or persons in front of them. each of the 3 men had one of the hats placed on is head but does not see which color. each man can, however see any hats in front of him or another man and each know what was in the box. when the man in rear is asked what color hishat is he replies " i dont know " when the man in the middle is asked he answers " i dont know" when the man in front is asked he responds " mine is black and that is no guess!"" he was right. how did he know??
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Gamer
2003-08-23 14:33:48 |
Re: math puzzles i need help please!!
I think you could find the answer to all of these or how to solve them on the site somewhere... (including one of them exactly!) You just need to not be lazy and actually LOOK!
Didn't you read the rules? No posting problems to the forum? I won't answer these questions and would encourage others not to either. |
dea
2003-08-23 15:13:31 |
Re: math puzzles i need help please!!
gee thanx alot you were probably one of those people that told on kids in school for cheating...this is summer im not supposed to have work!!! |
Gamer
2003-08-23 15:30:45 |
Re: math puzzles i need help please!!
Then don't do the puzzles... You can be one of the people that doesn't do their work. :)
Are you in southern hemisphere where it's starting to be summer now? It just is ending for me, and I don't really know much about these global season things! :)
Anyway, one such puzzle you could find if you searched for hat (it's the top one) was More hats! here |
Alan
2003-08-24 11:01:46 |
Re: math puzzles i need help please!!
By the way Dea you're saying its summer and you shouldn't have to work. Well It's my summer to so why should we have to work for you. Something to think about. |
Nithin
2003-10-30 03:36:17 |
Re: math puzzles i need help please!!
Dea try to think of the question outside of the square and maybe you will get the answer. All i mean is you should go through every aspect of the question, you should try "trial and error".
And alan there is nothing to think about your question, you are just asking why we have to work for dea. Well dea is one of the members of the website and otheres are supposed to help or give hints on how to solve a problem or problems. |
Patricia
2003-11-04 11:16:43 |
Re: math puzzles i need help please!!
my head hurts now |
D.
2003-12-29 20:18:19 |
Re: math puzzles i need help please!!
The answer to #1 is 100 tries, #2 is 9 students, I'm not sure about #3, and #4 is that the man in front observed that there were only 2 white hats and that the rest were black, and he learned that his own hat was white and that the man's hat behind him was also white, so the man's hat in back must have been black. |
ron
2005-01-03 23:03:27 |
Re: math puzzles i need help please!!
The answer for the first question would be two... if you super lucky that is. First you'd put 24 on both sides of the scale and weigh them, they'll be the same weight. Then you got two left over and weigh them to find out!!! Of course I wouldn't put that down, it's extremly hard for that to happen. But hey! It's just a thought. |
