Finite

[YUPAPA]

Find the number of ways the letters from the world TURBO can be arranged such that 'U" always follows 'O" in each arrangement.

What is the correct answer?

[Gayowulf]

why?

[YUPAPA]

I am doing my homework right now and I need to know the correct answer...
is it '120'?

[Coolin]

I'm guessing 15...

[YUPAPA]

Is there a formular coolin???

[niv]

i should know this..but i'm too lazy to look in my old math textbooks. i've already finished my state's 3 year requirement for math and i still have three years of high school to go...yaay...calculus

[lucifer]

what does 'U" always follows 'O" mean?

if it has to be directly afterwards it's just 4! = 24

if not it's

(4! * 1!) + (2! * 3!) +(3! * 2!) +(4! * 1!) = 72

120 = 5! = any order

[niv]

TURBO.

since the order does matter (TURBO is different from TUBRO),
that's permutations. nPr = n!/(n-r)!

since you dont want O to follow U, divide by 2.

nPr = n!/(n-r)!(2)

5P5 = 5!/(5-5)!(2)
= 5!/0!(2)
= 5*4*3 = 60

[YUPAPA]

So the answer is 60?
Formula is [5! = 5X4X3X2] / 2 ???

[LeX]

Originally posted by Coolin
I'm guessing 15...
Yup... that's a guess alright. :D

I knew how to figure out this problem when we were learning it, but I've forgotten it all by now. Is that summer homework or what?

[YUPAPA]

Summer School!

DA code!

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I found this out here:
http://www.site-32.com/

in the top site page!

[Koolguy]

Did you fail or are you just doing extra courses to get ahead?

[YUPAPA]

Extra Courses!
Finite is my OAC Math!

[Coolin]

And to think about it... I'm 5th in Canada on my grade level in Math :o

Perhaps I shouldn't have guessed :( :( :( :(

[Homeygwiz]

This problem sound more like a Statistics Math Problem...

Fun Fun Fun....

:p

HGW

[niv]

Originally posted by Homeygwiz
This problem sound more like a Statistics Math Problem...

Fun Fun Fun....

:p

HGW

AP Statistics...*snores*

actually, this problem is more likely to be from the intro high school math course, MQ1 *coughs*