The World of Layonara
The Layonara Community => Just for Fun => Topic started by: Dominæter on November 30, 2005, 06:49:00 pm
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Lets see how intelligent the people who play on Layo are (no offense intended, just a joke!)
Heres some good math.
This is kind of a test im putting on, post the number and the answer next to it. PM me if you want to know your score. I will then PM you the number of questions correct. (if it really bugs you i will tell you which ones you got wrong, but would prefer not to so everyone has the same chance)
It starts easy and gets more difficult as questions increase
Oh and please dont use a calculator, this is a paper and mind test.
1) Evaluate
43921
- 8754
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2) What is two-thirds of sixty percent of half of seventy-five?
3) What values of z satisfy 2(3-4z)-3(3z-2) = 80?
4) When the digits of a two digit positive number are reversed, the resulting positive two digit number is 72 less than the origional number? What is the number?
5) What is the name foir a line segment in a triangle with endpoints on a vertex and the side opposite the vertex?
6) A well is dug in the shape of a right circular cylinder with radius of one meter and depth of fifty meters. What is the volume of cubic meters, of dirt in the well?
7) What is the sum of the squares of the roots of the equation p^3+2p^2+3p+4=0?
("^" means "to the power of")
8)Express the product of 345 base 8 and 67 base 8 in as a base 8 numeral.
9) What is the sum of the elements of
[-2 5]^-1
[ 3 -7]
(with "^-1" i mean the inverse of the matrix. hint, hint)
10) A class of 13 students orders ice cream. The oprder is read over the phone to the ice cream store and clerk fills the order and delivers the ice cream to the class. The names of the studetns are not included in the order, just the number of cones of different flavors. There is only one flavor per cone for each student. The possible flavors are vanilla, chocolate, walnut, strawberry, and peach. How many different ice cream orders would be possible for this class?
That's it hope you enjoy it. Ill post a more challenging one if people actually participate in this one.
Hope you have fun, happy thinking!
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bah... I can't do this in english... too many things with different names from portuguese.
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I hope this is not someone's assignment which they need answers for. But here is the first four answers....all if have time for now.
1. 35167 2. 15 3. -4 4. 91
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*twitches*
THE PAPER IS ANGRY AT ME.....
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As a Math teacher and UIL (UIL -> ruler of all competitive things in Texas schools) Mathematics/Number Sense/Calculater sponsor, I refuse to answer anyone of those questions, lest I reduce myself to spending my freetime on my vocation.
;) ;)
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im sory you feel that way but i would really appreciate your answers. you dont need to devote all your free time to math. I would like to see how much the people who do math competitions really know ;)
As of now aragwen has the highscore
oh and its not for anyones homework its fust for fun.
Dom
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ahhhh........syntax error...stupidity=very yes
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Candyman111 - 12/1/2005 5:04 PM
ahhhh........syntax error...stupidity=very yes
You know, you can't just qoute that for everything.....
;)
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And how come you're still make-up?
Just change your prefs. already....
unless you've grown fond of your Rouge..........
:o
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My try:
1) 35,167
2) 15
3) negative 4
4) 80
5) hypotenuse
6) about 39.25 cubic meters
7) (answer may have roots)
8) ('s logorithmic)
9) negative 14
10) 1030
How'd I do?
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well...I actually was trying to RP a rouge, not a rogue but if people are just going to ridicule me.... lol, i just fixed it, thanks shrub
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Math is chaotic evil and thus restricted on Layo. ;)
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Alrighty you got a 40%, their tough look back at your work you got some wrong answers, and the only one with a word answer is question 5.
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Four out of ten on something that is done for fun is half-decent. Although, I did notice that it is mostly algebra. One of the questions is geometric, another is a proportion.
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I would do these problems,but I don't think I would at all. I have math class at school... and then for some reason I agreed to do Math League. So.... sorry, but I do enough math as it is.
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Math can be entertaining as long as it is not found to be too easy, too hard, or presented dully. (for me anyway.)
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I got this, but I'm only 16 so I don't know much yet ^_^
1) 35,167
2)14.985
3)-4
4)91
5) Not sure
6)493.48
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Dom, what math class are you in. I knew Jeff was pretty darn good at math, are you in his class?
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My attempt (done on paper, without looking at the other solutions:
1) 35167
2) 15
3) -4
4) 91
5) a bisector
6) 157.075 (approximately)
7) (Not doing cube roots. Nope. Nuh-uh)
8) 30763
9) 17
10) 2380
I have all my work available to scan in if I am disbelieved. *grins*
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http://mathpwned.ytmnd.com/
http://math-pwned.ytmnd.com/
http://fortheverythirdtime.ytmnd.com/
http://ptkfgsmathpwn.ytmnd.com/
My anwsers
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1) 35167
2) 15
3) -4
4) 91
5) Anyone ever tell you how much I hated all things trigonometric?
6) 157.1 m^3
7) Grr...
8) 30463
9) I know it's wrong, but I'll go with a guess here and say [5 -12]? :P
10) 1220703125.
I had to use a calculator. So all the ones that actually require a brain, y'know... they aren't correct. And that's most of them!
But yeah... I used a calculator to speed up the calculations. It's pretty hard to do it any other way for me, when i've been doing math using a calculator for the past... 9 or 10 years, except the days/weeks/months when I forgot the calculator at home :P
Combined with a damaged short term memory due to it being 3 in the morning and the math needed having been learnt 3 or 4 years ago, I must say I did not do nearly as well as hoped.