# A REAL math problem

Show 80 post(s) from this thread on one page
Page 1 of 2 12 Last
• 10-05-2003
axon
A REAL math problem
Below you will find an interesting math problem. If there is enough interest, and no one will get the solution, I will post the solution in a few days. Hint: use imaginery numbers.

There is a treasure burried on a deserted island. Here are the instructions to the place where you can dig for the treasure. On one of the island's meadows on the north shore two trees stand; an ancient oak, and an ancient pine. There is also an old gallows. Start at the gallows and walk to the oak counting the steps. At the oak turn right by a right angle and take the same number of steps. Put a spike in the ground at this point. Now return to the gollows. Now walk to the pine and count the steps. At the pine turn left by a right angle and take the same number of steps. Put another spike here. Dig halfway between the spikes; the treasure is there.

You get to the island, but in time, the weather has destroyed the gallows; not even a trace of them is to be found. How do you find the treasure?

• 10-05-2003
Silvercord
get a real job so you don't have to go to deserted \$\$\$\$ing islands looking for buried \$\$\$\$ing treasure
• 10-05-2003
axon
Quote:

Originally posted by Silvercord
get a real job so you don't have to go to deserted \$\$\$\$ing islands looking for buried \$\$\$\$ing treasure
I thought that this will be the response from some. It shows a lot from a "youth leader" like yourself silvercord. How about you try the problem, but if you find it borring/stupid, ot whatever, don't make any comments.
• 10-05-2003
Silvercord
:) I was just joking around, lol

I don't feel like trying the problem.

EDIT: besides, Ive got to lead our nation's youth to getting real jobs :)

haha
• 10-05-2003
ZerOrDie
My first year calculus professor did exactly the same problem :D I will refrain from answering ;)
• 10-05-2003
axon
Quote:

Originally posted by ZerOrDie
My first year calculus professor did exactly the same problem :D I will refrain from answering ;)
Yet you don't need calculus to solve it!
• 10-05-2003
confuted
Quote:

Originally posted by axon
Yet you don't need calculus to solve it!
You didn't need calculus for the problem my first year calc teacher gave us, either, but we sure tried it ;)

A man on a bike is 200 meters from a wall, traveling 10 meters per second toward the wall. There is a fly at the wall, which flies toward the bike at 1 meter per second. When it gets to the bike, it changes direction instantly and starts flying back toward the wall. When it reaches the wall, it changes direction instantly and starts flying back toward the bike. This continues until the fly is trapped between the bike tire and the wall and squished.

How far did the fly fly?
• 10-05-2003
XSquared
As the bike approaches the wall, the distance the fly travels approaches infinity.
• 10-05-2003
confuted
Quote:

Originally posted by XSquared
As the bike approaches the wall, the distance the fly travels approaches infinity.
Absolutely not.
• 10-05-2003
Zach L.
I may be missing something, but the fact that the fly changes direction does not seem to matter.

The man will spend 20 s enroute, and at the fly's rate of travel, it will have moved a total of 20 m.

As for the other problem, still working on it.
• 10-05-2003
JaWiB
But wouldn't the fly hit the bike tire before he hits the wall? in 20 sec the bike hits the wall, in 20 seconds the fly is 20 meters away from the wall, so in 15 seconds the fly is at 185 and the bike is at 150 in 18 seconds the fly is at 182 and the bike is at 180 less than a second later the bike reaches the fly, at which point the fly turns around and the bike catches up with the fly and suddenly the fly is moving at 10 meters per second until BAM...so the answer is 36.2 meters since the fly made it exactly 18.1 meters before heading back 18.1 meters to meet his doom...
• 10-05-2003
Zach L.
Good point... Forgot the bike was moving faster than the fly.
• 10-06-2003
Silvercord
hey you guys you are forgetting axon's problem
• 10-06-2003
XSquared
I've already got that one figured out. Just not gonna post the solution yet.
• 10-06-2003
DrZoidberg
If it is possible to find the treasure without knowing the position of the gallows that means it doesn't matter where the gallows was located. The outcome will be the same for all starting points. So just choose one. I suggest starting in the middle between the 2 trees.
Show 80 post(s) from this thread on one page
Page 1 of 2 12 Last