crusty math questions

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crusty math questions

Postby HardAttack on Mon Aug 19, 2013 12:32 pm

Feel free to ask away if you have got mind puzzling tiny fun questions,
Feel free to put your solutions to the asked questions,
Lets have fun...

Below, an example question to come;

Q.1.

10 same looking bags,
9 of 10 begs each are filled with 10 items, each items to weigh 10 grams.
1 of 10 begs is filled with 10 items again, but this beg each items to weigh 9 grams each.
All items/begs, all are in same size,shape and color.
You have got a scale for measurement and you have got one single measurement shot.
How would you call it which bag that is to have 9 grams items ?

O:)
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Re: crusty math questions

Postby MeDeFe on Mon Aug 19, 2013 3:13 pm

I first solved that problem when I was 12 years old.

You others have fun with it.
saxitoxin wrote:Your position is more complex than the federal tax code. As soon as I think I understand it, I find another index of cross-references, exceptions and amendments I have to apply.
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Re: crusty math questions

Postby clangfield on Mon Aug 19, 2013 3:50 pm

HardAttack wrote:Feel free to ask away if you have got mind puzzling tiny fun questions,
Feel free to put your solutions to the asked questions,
Lets have fun...

Below, an example question to come;

Q.1.

10 same looking bags,
9 of 10 begs each are filled with 10 items, each items to weigh 10 grams.
1 of 10 begs is filled with 10 items again, but this beg each items to weigh 9 grams each.
All items/begs, all are in same size,shape and color.
You have got a scale for measurement and you have got one single measurement shot.
How would you call it which bag that is to have 9 grams items ?

O:)

Take 1 item from the first bag (or beg, if you prefer :geek: ), 2 from the second, up to 10 from the last.
Weigh them and see what multiple of 9 grams you have.

Next?
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Re: crusty math questions

Postby Gabriel13 on Mon Aug 19, 2013 5:59 pm

I may be taking 2 college level math classes in my junior year of high school, but I can't come up with problems like these! I will gladly solve them though! :D
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Re: crusty math questions

Postby HardAttack on Tue Aug 20, 2013 6:08 am

nice :)

q.2. a chess tournament,
every played game means 1 player is eleminated and winner promotes.
in a 100 player chess tournament (assume no stale happens) how many chess games should be completed to call the winner/champion ?
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Re: crusty math questions

Postby MeDeFe on Tue Aug 20, 2013 6:46 am

HardAttack wrote:nice :)

q.2. a chess tournament,
every played game means 1 player is eleminated and winner promotes.
in a 100 player chess tournament (assume no stale happens) how many chess games should be completed to call the winner/champion ?


show


100 people is an odd number for a knock-out tournament.
Last edited by MeDeFe on Wed Aug 21, 2013 10:05 am, edited 1 time in total.
saxitoxin wrote:Your position is more complex than the federal tax code. As soon as I think I understand it, I find another index of cross-references, exceptions and amendments I have to apply.
Timminz wrote:Yo mama is so classless, she could be a Marxist utopia.
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Re: crusty math questions

Postby clangfield on Tue Aug 20, 2013 7:09 am

HardAttack wrote:nice :)

q.2. a chess tournament,
every played game means 1 player is eleminated and winner promotes.
in a 100 player chess tournament (assume no stale happens) how many chess games should be completed to call the winner/champion ?


show


Next?
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Re: crusty math questions

Postby LYR on Tue Aug 20, 2013 8:05 am

HardAttack wrote:nice :)

q.2. a chess tournament,
every played game means 1 player is eleminated and winner promotes.
in a 100 player chess tournament (assume no stale happens) how many chess games should be completed to call the winner/champion ?


show
I do it because I can

I can because I want to

I want to because you said I couldn't
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Re: crusty math questions

Postby HardAttack on Tue Aug 20, 2013 8:39 am

LYR wrote:
HardAttack wrote:nice :)

q.2. a chess tournament,
every played game means 1 player is eleminated and winner promotes.
in a 100 player chess tournament (assume no stale happens) how many chess games should be completed to call the winner/champion ?


show


good answers, 99 is the right answer and as clangfield stated, 1 game for 1 player to knock-out, to call winner 99 players need to be knocked-out, so 99 games we need to name the winner.

yup, thank you all so far, soon new questions are on the way.
please you feel free to add questions as well :)
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Re: crusty math questions

Postby HardAttack on Tue Aug 20, 2013 8:44 am

Q.3.

2+3=8,
3+7=27,
4+5=32,
5+8=60,
6+7=72,
7+8=??
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Re: crusty math questions

Postby HardAttack on Tue Aug 20, 2013 9:00 am

Q.4.

Two perfect logicians, S and P, are told that integers x and y have been chosen such that 1 < x < y and x+y < 100. S is given the value x+y and P is given the value xy. They then have the following conversation.

P: I cannot determine the two numbers.
S: I knew that.
P: Now I can determine them.
S: So can I.

Given that the above statements are true, what are the two numbers?
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Re: crusty math questions

Postby MoB Deadly on Tue Aug 20, 2013 2:38 pm

Im using a lifeline

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Re: crusty math questions

Postby HardAttack on Wed Aug 21, 2013 4:13 am

lol mob deadly,

btw, if q3 and q4 are bit tough ?
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Re: crusty math questions

Postby MeDeFe on Wed Aug 21, 2013 5:17 am

LYR wrote:
HardAttack wrote:nice :)

q.2. a chess tournament,
every played game means 1 player is eleminated and winner promotes.
in a 100 player chess tournament (assume no stale happens) how many chess games should be completed to call the winner/champion ?


show

They wouldn't, however. You can get a free pass in the first round of a knock-out tournament, but after that, everyone plays.
saxitoxin wrote:Your position is more complex than the federal tax code. As soon as I think I understand it, I find another index of cross-references, exceptions and amendments I have to apply.
Timminz wrote:Yo mama is so classless, she could be a Marxist utopia.
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