Math Puzzle

[DougShrapnel]

http://www.etienne.nu/mathpuz/hornet.htm?text=81

i got to stage 2, realized i needed a calculator and stopped. call me lazy i guess

[DougShrapnel]

no calc for stage 2 but you'd need one for later.

Well, that's too much for a Thursday morning that I'm off :P I would need to dig quite far in my brain to solve Stage 7

But, you were so close to the end. And, stage 8 doesn't require a calculator.

[Cooker]

I did it all. I found the typos and errors quite frustrating. For example, in the square problem, he doesn't define what he means by twice as big, but judging from the answer that works, he meant twice as much area, and not twice as big diagonally across or twice as big a perimeter. This is by no means a standard definition of twice as big in mathematics. Also you have to guess how many significant figures he wants as putting in the wrong number of digits gives incorrect results. This could have been remedied by making all numbers be perfect integers. Poorly designed for a mathematics person if the designer is one.

[baggins]

i entered the correct answer for stage 2 and then it opened a dead link in a new window. and it kept doing that. so i quit.

It does that when you enter the incorrect answer...

[Cooker]

Its just a convoluted Pythagorean Theorem question. Now get cracking.

Edit: Corrected a typo

[ QUOTE ]
I did it all. I found the typos and errors quite frustrating. For example, in the square problem, he doesn't define what he means by twice as big, but judging from the answer that works, he meant twice as much area, and not twice as big diagonally across or twice as big a perimeter. This is by no means a standard definition of twice as big in mathematics. Also you have to guess how many significant figures he wants as putting in the wrong number of digits gives incorrect results. This could have been remedied by making all numbers be perfect integers. Poorly designed for a mathematics person if the designer is one.

[/ QUOTE ]A little poking around shows that the link we were given jumps to the start, while others would have received an instruction that digits after the decimal place were to be ignored.

Oh well since you told me that it ended at Stage 8 I decided to solve it...that Stage 8 was ummm more physic than math no?

[mackthefork]

[ QUOTE ]
It does that when you enter the incorrect answer...

[/ QUOTE ]

Oh well I put in 0 for that one about 100 times before I tried 777.

Mack

PEMDAS is fun :P I hate those skill question to win a bag of chips or something cheap.

[mackthefork]

[ QUOTE ]
PEMDAS

[/ QUOTE ]

I'll probably be sorry but ?

Mack

Good old order of operation learned in high school
PEMDAS
Parentheses
Exponents
Multiplication and Division
Addition and Subtraction

[metsmaniac823]

Also learned it as:

Please Excuse My Dear Aunt Sally

which is queer, so a much hipper one (if such a thing could be said) is:

Please End My Day At School

[durron597]

I got held up with problem 7 when I didn't realize the question said "meters" instead of "kilometers" for the amount under the water.

[chezlaw]

Was this test designed for anything in particular apart from a bit of fun?

chez

[DougShrapnel]

I am unaware of any purpose, He has similiar puzzles. http://www.etienne.nu/

[chezlaw]

[ QUOTE ]
I am unaware of any purpose, He has similiar puzzles. http://www.etienne.nu/

[/ QUOTE ]

I tried to visit IQ-land but failed the entrance exam /images/graemlins/frown.gif

[Josh W]

step four says:

{[(710^0)/8] + 0,710} * 1000

the first part is 1/8 plus 710, so 710.125. Multiply that by 1000, and it should be 710125, but it opens a blank window.

I'm guessing the 0,710 is a typo. Any help?

Josh

[chezlaw]

, means .

chez

[djj6835]

it's supposed to be 0.710 not 0,710.

[chezlaw]

I think its some strange european convention

[DougShrapnel]

I couldn't get in either.

[durron597]

[ QUOTE ]
It is definitely a strange european convention

[/ QUOTE ]

We use in in Canada as well, it's the way most French write it. Since we are so close to the US though we tend to use both :P

[Homer]

[ QUOTE ]
Well, that's too much for a Thursday morning that I'm off :P I would need to dig quite far in my brain to solve Stage 7

[/ QUOTE ]

It actually involves no more than the pythagorean theorem. The hardest part is making a diagram, which should look something like (r = radius, x = length of cord):

http://img47.imageshack.us/img47/5123/chord3br.jpg (http://imageshack.us)

The part you're looking for is in red. It is the radius minus the length of the missing leg of the right triangle. The length of the missing leg is sqrt(r^2 - 1/4x^2), so the answer is:

r - sqrt(r^2 - 1/4x^2)

Yeah I know, I've completed it (see post below) after someone said it ended at stage 8 :P I was just lazy.

[housenuts]

[ QUOTE ]
it's supposed to be 0.710 not 0,710.

[/ QUOTE ]

i had the same problem.