Computer Science Canada


Author:  Martin [ Tue Apr 15, 2003 9:31 pm ]
Post subject:  Euclid

What'd everybody get on the euclid?

Author:  Catalyst [ Tue Apr 15, 2003 9:45 pm ]
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whats the euclid?

Author:  Thanos [ Wed Apr 16, 2003 12:37 am ]
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It's a math contest for senior students, is it not?

Author:  Martin [ Wed Apr 16, 2003 6:54 am ]
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10 Questions, 100 marks, 2.5 hours.

Author:  yuethomas [ Wed Apr 16, 2003 7:23 am ]
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Eurgh, was that horrible.

Since this is the first year Euclid and Descartes have been merged, I expected an increase in difficulty...

I didn't finish the last 2 questions. I'm thinking around 82-85 marks for me.

Author:  Tony [ Wed Apr 16, 2003 8:25 am ]
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i didnt write it Confused

but I did get a first place medal for Fermata 8) and the usual top 25% in Canada ofcouse Very Happy

Author:  jamez [ Wed Apr 16, 2003 9:57 am ]
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can someone post the questions?

Author:  Delta [ Wed Apr 16, 2003 1:34 pm ]
Post subject:  That would be pretty cool

then I will know what to except if I take it next year

Author:  Catalyst [ Wed Apr 16, 2003 2:15 pm ]
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i took a math contest today i know i started with a g, but id ont remember the name, (coud be golais) im not really sure

Author:  DarkHelmet [ Wed Apr 16, 2003 2:52 pm ]
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i took a math contest today too. Hypatia. it only had for questions on it. The first two were extremely easy, the forth one was tougher, and the third was the worst. Even our math teacher didn't know how to do it without using calculus (we haven't learned calculus yet).

Author:  Catalyst [ Wed Apr 16, 2003 3:20 pm ]
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ya that was the gr.11 test i had the gr.10 version

Author:  yuethomas [ Wed Apr 16, 2003 4:10 pm ]
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Dark do you mind posting the 3rd question then? ^_^

Author:  FwuffyTheBunny [ Thu Apr 17, 2003 12:22 pm ]
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are these contests like at your school our held by a city and you have to be invited or just go?

Author:  DarkHelmet [ Thu Apr 17, 2003 2:27 pm ]
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They're held at the school for anyone who wants to participate. I'll see if I can get a copy of the questions, but I won't be able to until Tuesday.

Author:  yuethomas [ Thu Apr 17, 2003 10:33 pm ]
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Thank you. I was thinking of posting the Euclid questions, but apparently they have a clause on the test paper against unauthorised copying. I can't be bothered to paraphrase it.

Author:  Martin [ Tue Apr 22, 2003 3:35 pm ]
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Question 10:
An integer n is 'savage' if it fits the following cases
The set {1,2,3,...,n} can be divided into three groups so that all of the following is true:

Group A contains only odd numbers
Group B contains only even numbers
Group C contains all of the multiples of three (it can contain other numbers as well)

The sum of all three groups is the same.

Now for the actual question (3 parts)
a) Show that 8 is a 'savage' number
b) Prove that for every even 'savage' number, (n+4)/12 is an integer
c) Find every prime 'savage' number less than 100.

Remember, this is math, not computer science. Couldn't even have graphing calculators.

Author:  Prince [ Tue Apr 22, 2003 5:00 pm ]
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wtf?!?!?!... dats ONE question Shocked Confused

Author:  Catalyst [ Tue Apr 22, 2003 5:55 pm ]
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math contests tend to be like that...

Author:  yuethomas [ Tue Apr 22, 2003 8:58 pm ]
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I got part a and 3/4 of part b done. Didn't have time to start part c. Sad

(P.S. 8 is a savage number as 1~8 can be divided into
A = {5,7}
B = {4,8}
C = {1,2,3,6} )

Author:  Office of the Registar [ Fri Apr 25, 2003 9:06 am ]
Post subject: 

i did this math contest and that was the last question rite?
man, i blanked out on that
i guess i needed one more year of experience...
(i'm in grade 11)

Author:  Martin [ Fri Apr 25, 2003 11:32 pm ]
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Sad thing is, part a)'s only worth 2 of the 10 marks

Author:  Crono [ Sun May 11, 2003 1:39 pm ]
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hey i saw tis post n wuz like "woh, tom's here", lol, wut's goin on tom? u comin to waterloo tis year?

euclid wuz easy, but long, i didnt have time to finish the last one, o wellz, i'll b happy wit my

Author:  bugzpodder [ Thu May 22, 2003 4:19 pm ]
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98 on euclid for me ^.^;
hypatia question 3, i think it is if you have a cylinder and sphere, both have the same radius, and the sphere is half the height of the cylinder (or was it the other way around). and you have a plane parallel to the ground level cut through both objects, what value of the height of plane will make the area of the cylinder equal to area of the sphere.

the cylinder part is easy, the sphere, you gotta realize do pythagoras. let the radius of the area be r, and radius of sphere be R. so basically:

Author:  SilverSprite [ Wed Jun 18, 2003 1:10 pm ]
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I got 75 on the Euclid.. shitty time limit.. Why did Mr White put me next to the window sooo distracting.. anyways yeah.. I did ok.. I tripled my score from last year:D

Author:  Andy [ Wed Jun 18, 2003 2:58 pm ]
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hmmm our math exams has 2 questions from the Euclid, lucky me and SilverSprite and Hello and AsianSensation

Author:  AsianSensation [ Wed Jun 18, 2003 3:30 pm ]
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I sucked big time on the Euclid, I only did 7 questions, got 69, ran out of time, spent all my time doing the hexagon and the cannon one. I redid those questions like 4 times each, cuz i kept on getting different answers, stupid mechanical errors Evil or Very Mad .oh well, just have to learn to work faster next time.

Author:  Andy [ Wed Jun 18, 2003 3:49 pm ]
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meng the cannon one is easy, y do you think it was on our math exam?

Author:  JayLo [ Wed Jun 18, 2003 4:00 pm ]
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man! i don't even think our school has Euclid.

Author:  PaddyLong [ Wed Jun 18, 2003 5:52 pm ]
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these contests they are talking about are ones offered by the University of Waterloo...

I only did the open one this year, it was pretty straight forward except for part C and I think one question in part B that had all these angles and something about light reflecting or something... even a couple of the teachers looked at it and were like wtf... I can't remember how I did though, I think like 2nd or 3rd in my school, so not too good I don't think

Author:  JayLo [ Wed Jun 18, 2003 5:55 pm ]
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so it's purely math? at what level? better start preparing...

Author:  Andy [ Wed Jun 18, 2003 6:02 pm ]
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paddylong what the hell are u talking about? there is no part C in Euclid!!! its full solution and every question is worth the same

Author:  PaddyLong [ Wed Jun 18, 2003 6:12 pm ]
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I was talking about the Open competition if you read my post

Author:  Andy [ Wed Jun 18, 2003 6:15 pm ]
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oh sorry, but still Open does not have part C its only A and B

Author:  PaddyLong [ Wed Jun 18, 2003 6:22 pm ]
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no, I'm quite sure it has a part c... I may have a bad memory but I do remember that it has a part c with like 2 questions

Author:  Andy [ Wed Jun 18, 2003 6:25 pm ]
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i thought it was only A and B i'll ask some one else to make sure

Author:  Andy [ Wed Jun 18, 2003 6:29 pm ]
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o and ya there is no part c, only A and B

Author:  PaddyLong [ Wed Jun 18, 2003 6:31 pm ]
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lol looks like I was wrong, there is only part a and b
must have been thinking of the fermat one I did last year

Author:  SilverSprite [ Wed Jun 18, 2003 6:33 pm ]
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I didnt write the same math exam as you dodge.. remember?

Author:  Andy [ Wed Jun 18, 2003 6:41 pm ]
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oh ya my bad, u skipped, man i seriously need to stop coming here so much and get some sleep

Author:  JayLo [ Wed Jun 18, 2003 7:53 pm ]
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when you know you're addicted to
when you hear the news and think that SWAT means super wizards at turing...

think that applies to you dodge Razz

Author:  bugzpodder [ Thu Jun 19, 2003 4:05 pm ]
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mhahaha, no exams while every one else is suffering during exams=fun. all cuz of euclid Wink

kinda sux to miss $500 by 1 mark on euclid, and question #1 on fermat for another $500. :S

Author:  Andy [ Thu Jun 19, 2003 8:56 pm ]
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Jack 500 bux from who? or where?

Author:  SilverSprite [ Fri Jun 20, 2003 5:20 pm ]
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What do you think dodge.. and don't use first names.. and that sux bugz..

Author:  PaddyLong [ Fri Jun 20, 2003 6:09 pm ]
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I don't think he was using first names ... I believe by "Jack" he meant it like hijack as in steal...

Author:  Andy [ Fri Jun 20, 2003 6:41 pm ]
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lol, paddylong good one... sry silversprite, but meng already did it a couple of times b4

Author:  SilverSprite [ Fri Jun 20, 2003 10:16 pm ]
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doesnt matter.. say my name and i'm getting ppl after you!

Author:  Crono [ Sun Jun 22, 2003 1:01 pm ]
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boyz, it's the summer, take a break from math eh? outta all ppl, aren't y'all all sick n tired of math now? lol, i kno i am...
hey bugz, howz waterloo so far?

Author:  Martin [ Sun Jun 22, 2003 1:51 pm ]
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Tired of math? Never! Math class...definately.

Author:  PaddyLong [ Sun Jun 22, 2003 2:41 pm ]
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man I was tired of math class in like the first month or two of grade 9 Rolling Eyes

Author:  krishon [ Sun Jun 22, 2003 7:10 pm ]
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lol...i'm so far ahead of my class i play games during class on my calculator (thank god ti-83 + have games) and i still own ppl on tests.

Author:  SilverSprite [ Sun Jun 22, 2003 8:18 pm ]
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ahahahahhahahaha CRONO is telling ME to stop doing math.. lmao right buddy hmm i wonder how you got perfect on the open and i got 38

Author:  AsianSensation [ Sun Jun 22, 2003 8:42 pm ]
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that is ironic, Crono is sick of math? that's like britney spears admitting that she got implants, both things are unlikely to happen anytime soon.

Author:  Crono [ Sun Jun 22, 2003 9:06 pm ]
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alrite kidz, either grow up or catch up...ooooo...can't...haha...yea krishon i kno how u feel...sittin in class doin nutin n pullin off 100's, suckerz...damn i wish next year would b just like tis 1...

Author:  PaddyLong [ Sun Jun 22, 2003 10:27 pm ]
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haha that's all I did in math class.... nothing and up till algeo (teacher bit of a tough marker any way) managed to do great and just laughed at all the people who worked their asses off and then bitched at me because I did better than them Laughing

serioulsy though... trying in school is for suckers... I didn't really figure that out till last year (grade 11) and it's even more for suckers up until like grade 11 (where they mean a little) because the marks mean shit all in the end anyway

Author:  Andy [ Mon Jun 23, 2003 3:18 pm ]
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well crono, with fan out of ur way, bugz is ur only competition now eh?

Author:  SilverSprite [ Sat Jun 28, 2003 7:20 am ]
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Author:  bugzpodder [ Thu Jul 03, 2003 11:03 am ]
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Crono wrote:
boyz, it's the summer, take a break from math eh? outta all ppl, aren't y'all all sick n tired of math now? lol, i kno i am...
hey bugz, howz waterloo so far?

dammit i wanted the $$$ so i could buy more math books.