If you're bored (puzzles) read 1st post

by **Paulicus** on Fri Nov 17, 2006 8:34 pm

What me worry is correct , it is a potato.. the little dent things are called eyes by some.. kind of lost in the past.

New # puzzle: if 10 - 1 = 7 Then 7 + 16 = ?

by **wcaclimbing** on Fri Nov 17, 2006 10:25 pm

23??? if i got it right, il explain...

by **happysadfun** on Fri Nov 17, 2006 10:32 pm

6FILD=FORUM

by **strike wolf** on Sat Nov 18, 2006 12:30 am

by **Paulicus** on Sat Nov 18, 2006 1:39 pm

Strike wolf is correct... 25 or 25 octal to be exact.

Happeysadfun is correct.. the aswer is forum

New riddle:
You have two hourglasses: a 7 minute one and an 11 minute one. Using just these hourglasses, accurately time 15 minutes.

by **what,me worry?** on Sat Nov 18, 2006 2:07 pm

I used to play these games all day back in high school. trust me i have had enough subs thrown my way to answr any riddle. this is your answer:
Flip the 7 and 11 min clocks at the same time because once the 7 mins runs out out the first clock, that tells you that there are only 4 mins remaining in the 11 minute clock. once the 7 clock runs out throw it away and immediatly flip the 11 minute one back over for the full eleven minutes. 4+11=15
elementary my dear watson

by **wcaclimbing** on Sat Nov 18, 2006 4:23 pm

heres one. its more of a math problem, but its still good:

there are 2000 students at a school.
Each students takes 7 classes each day.
Each teacher teaches 5 classes a day.
Each class has 25 students.
for every 14 teachers, there is 1 assistant principal.

How many assistant principals are there at the school?

by **Paulicus** on Sun Nov 19, 2006 1:37 am

What, me worry is correct with the anser for the 15 min timer.
Any takers on wca's question??

by **Spockers** on Sun Nov 19, 2006 5:50 am

by **wcaclimbing** on Sun Nov 19, 2006 8:53 am

by **Paulicus** on Mon Nov 20, 2006 12:46 am

Wow that's more than expected.. I take it this isn't realistic

by **sfhbballnut** on Mon Nov 20, 2006 4:02 pm

I believe you need to know class size

by **sfhbballnut** on Mon Nov 20, 2006 4:06 pm

I believe its 7 assistant principals

by **sfhbballnut** on Mon Nov 20, 2006 4:07 pm

Paulicus wrote:Wow that's more than expected.. I take it this isn't realistic

No it isn't realistic

by **wcaclimbing** on Mon Nov 20, 2006 6:42 pm

sfhbballnut wrote:I believe you need to know class size

nice catch. i edited the first post.
each class has 25 students in it.
4 and 7 are not the answers

by **Kupo666** on Mon Nov 20, 2006 7:08 pm

8 assistant principals.

by **wcaclimbing** on Mon Nov 20, 2006 7:13 pm

yes

Easy one:
if Billy can paint a house in 6 hours and Bob can paint a house in 10 hours, how long will it take them to paint a house if they work together?

by **sfhbballnut** on Mon Nov 20, 2006 8:47 pm

three and a half hours I think, I'm trying to do it in my head because I'm to lazy to work it out, I based 7 off of 30 member classes

by **Kupo666** on Mon Nov 20, 2006 11:02 pm

Three and three fourths hours.

by **sfhbballnut** on Mon Nov 20, 2006 11:04 pm

ah I was close in guessing well done

by **wcaclimbing** on Tue Nov 21, 2006 5:39 pm

new question:

prove that 0.999999999 repeated equals one
(there are two ways to do this. if you know both, post both. if you know one, post it and someone else will post the other way)

by **sfhbballnut** on Tue Nov 21, 2006 5:42 pm

it equals 0.99999999 repeating, so how does it equal one? unless when you plug it in the calculator it comes out as one, this should be interesting

by **wcaclimbing** on Tue Nov 21, 2006 5:57 pm

no sfh just because the calculator says it equals 1 doesnt mean it does.

here is the first solution:

make x=.9999999999....

first multiply x by ten = 9.9999999999 (10x=9.999999.....)
then subtract x =9.000000 (9x=9.0000000)

then with simple algebra, solve 9x=9.

since x=.99999.... , .99999... = 1

now does anyone know the other solution?