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q 33

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by engg.manik » Tue Oct 13, 2009 7:05 am
33. Pat will walk from A to C to B through the grid section , how many possible routes can pat take that have the minimum possible length ?

OA - 20
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Re: q 33

by JeffB » Tue Oct 13, 2009 7:58 am
engg.manik wrote:33. Pat will walk from A to C to B through the grid section , how many possible routes can pat take that have the minimum possible length ?

OA - 20
From A to C

5!/3!2! = 10

C to B

Only 2 ways to go

10 * 2 = 20
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