Ok ok ok.....Cowboy rides into to town on Friday, stays three days, and then leaves on Friday, how'd he do it?

[Eric]

<div style='font: 11pt ; text-align: left; '>Ok ok ok.....Cowboy rides into to town on Friday, stays three days, and then leaves on Friday, how'd he do it?</div>

[Kupek]

<div style='font: 10pt verdana; text-align: left; padding: 0% 10% 0% 10%; '>He was high on a really strong dose of Friday.</div>

[Manshoon]

<div style='font: 14pt "Times New Roman"; text-align: left; '>Friday's his horse I presume.</div>

[Gentz]

<div style='font: 11pt arial; text-align: left; '>He is John Titor, time travelling cowboy from the futurepast!</div>

[Zeus]

<div style='font: 9pt ; text-align: left; '>Yep</div>

[Agent 57]

<div style='font: 9pt ; text-align: left; '>Indeed, this is an oldie.</div>

[Zeus]

<div style='font: 9pt ; text-align: left; '>Anyone who's seen the movie Little Big League would know it :-)</div>

[Eric]

<div style='font: 11pt ; text-align: left; '>Hehe, it takes one guy 3 hours to paint a house, it takes another guy 5 hours to paint a house, how long does it take for them to paint a house together?!</div>

[Flip]

<div style='font: 10pt Tahoma; text-align: left; '>3 hours to paint a house means the guy gets 1/3 of the house done per hour...

5 hours to paint a house meane the guy gets 1/5 of the house done per hour...

so the answe would be [(1/3)+(1/5)]X = 1

common denominator: [(5/15)+(3/15)]X = 1

combine: (8/15)X = 1

divide each side by (8/15): X = 1.875 hours</div>

[Zeus]

<div style='font: 9pt ; text-align: left; '>Something like that. I think they made it easier in the film</div>

[Eric]

<div style='font: 11pt ; text-align: left; '>Way easier, 3x5/3+5.</div>

[Flip]

<div style='font: 10pt Tahoma; text-align: left; '>well, i dont see the logic in that formula unless you just happened to know it... i'm happy with myself for breaking it down. :)</div>

[Julius Seeker]

<div style='font: 12pt ; text-align: left; '>534*17(93/6 + 17)/14XY =7Y*4X</div>

[Flip]

<div style='font: 10pt Tahoma; text-align: left; '>lets define the variable as X=1 Y=2

the 7Y*4X would equal = 56

the other one...

534*17(93/6 + 17)/28

9078(32.5)/28

295035/28 = 10536.964</div>

[Eric]

<div style='font: 11pt ; text-align: left; '>a x b over a+b. :P</div>

[Kupek]

<div style='font: 10pt verdana; text-align: left; padding: 0% 10% 0% 10%; '>1/a + 1/b = 1/x
b/ab + a/ba = 1/x
(b + a)/ab = 1/x

There's not special about it, it's just a word problem that (making a lot of assumptions) is solved by this simple formula.</div>

[Flip]

<div style='font: 10pt Tahoma; text-align: left; '>gotcha.</div>