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![[Post New]](/templates/default/images/icon_minipost_new.gif) 4 Apr 2008 16:11:10 IST
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the no of ways of reachin from one vertex of a cube to the opp if allowed to move only a unit step in a direction parallel to any of the edges is..given the dimensions of the cube r 10*10*10..... the ans is 27! (9!)3
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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Apr 2008 09:06:17 IST
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I'm 500% SURE it is wrong.
Answer should be 30! / (10!) ^3
as 30 steps have to be arranged - 10 along +ve X axis, 10 along +ve Y axis, and 10 along +ve Z axis to reach the opposite vertex.
and divided by 10! three times as 10 steps of each are repeated and are identical occurrences.
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- Gaurav Ragtah (spideyunlimited)
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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Apr 2008 09:09:38 IST
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OR MAYBE I snorted too much cocaine
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- Gaurav Ragtah (spideyunlimited)
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