Re: A83: Tutorials...


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Re: A83: Tutorials...




John Kugelman wrote:

> Bryan Rabeler wrote:
> >
> > James Matthews wrote:
> >
> > > Actually...YOU'RE ALL WRONG!!!  Ha-ha.
> > >
> > > Don't divide by two, Bryan.  That takes away WAY too many.  Instead of
> > > doing:
> > > 5*4*3*2*1*3, and then dividing by two.  You do
> > > 5*4*3*2*1*2 = 240.
> > >
> > > That has been verified...and I didn't put it on the test...I put 360, sigh.
> > > :)
> > >
> > > James.
> >
> > Verified by who?  The answer is 180.
>
> Stop the insanity!
>
> 513241 321415 521431 531421 124351 145321 534121 421513
> 253141 213145 315241 132145 145231 413521 542113 125431
> 314521 214531 142513 121453 312541 234511 321541 134251
> 524113 131425 514321 513421 521143 253411 141253 532411
> 251413 352411 254113 532141 131245 211345 514231 543121
> 534211 132541 153421 123415 241513 125143 523141 321451
> 112435 321145 231541 134215 325141 324115 511423 425311
> 151243 412351 151423 231145 152431 143125 541123 112345
> 132415 114523 451321 153241 214351 241135 142315 154123
> 523411 251341 412135 124513 143251 214135 423511 512143
> 124315 143521 124135 125413 412531 431125 112543 112453
> 134521 121435 354211 542131 435211 425131 141325 412153
> 213541 351421 154231 341251 254311 142153 421531 243115
> 413251 411523 141235 152341 352141 325411 524311 514213
> 314125 231451 145123 345121 451231 143215 123145 341521
> 415231 341215 431251 142351 541321 412315 125341 123451
> 314251 235411 542311 241351 115243 423151 541231 511243
> 315421 134125 141523 235141 132451 142531 421351 432151
> 123541 241153 135241 452113 431215 411325 524131 213451
> 215431 512431 451123 214513 421153 312145 425113 231415
> 114253 311245 142135 213415 145213 324511 324151 421135
> 211435 245311 342151 114235 452131 411253 245131 234115
> 413215 214153 411235 415213 512341 351241 521413 113245
> 452311 354121 453211 432115 211543 254131 311425 541213
> 312451 543211 521341 342511 245113 345211 251431 152143
> 124153 124531 215413 121345 251143 314215 215143 421315
> 113425 453121 114325 423115 152413 154321 413125 234151
> 121543 531241 412513 243511 415321 341125 211453 435121
> 241531 451213 154213 243151 215341 342115 512413 415123
> 214315 312415 241315 135421 432511 514123 431521 115423
>
> That's 240 odd numbers, all unique.
>
> --
> John Kugelman.  kugelman@mnsinc.com
>
> I believe we can change anything.
> I believe in my dream.
>     - Joe Satriani

Ok, your right 240 is the answer.  I found the error in my logic.  The answer
should be 5! * (4!/((4-1)!*1!)) / 2! = 5! * 4 / 2 = 240.

--
Bryan Rabeler <brabeler@ticalc.org>
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