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

[what,me worry?]

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

[wcaclimbing]

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?

[Paulicus]

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

[Spockers]

4?

[wcaclimbing]

no

[Paulicus]

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

[sfhbballnut]

I believe you need to know class size

[sfhbballnut]

I believe its 7 assistant principals

[sfhbballnut]

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

No it isn't realistic

[wcaclimbing]

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

[Kupo666]

8 assistant principals.

[wcaclimbing]

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?

[sfhbballnut]

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

[Kupo666]

Three and three fourths hours.

[sfhbballnut]

ah I was close in guessing well done