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Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: permutation & combination
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[Post New] 13 Jun 2007 22:15:25 IST
   Subject: Re:permutation & combination
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HIMANSHU JAIN (376)

Olaaa!! Perrrfect answer. 62  [95 rates]
HIMANSHU JAIN's Avatar
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ans is 8.
let the no. is of 1 digit then it has 3 options
similar to that a 2 digit no. will have 3*3 = 32 options.
for n digit no.:--
3n>900.
which is true for n=8 for least value.
Himanshu Jain P.E.C. http://jainhim.blogspot.com/
  this reply:   5 points  (with 1  Olaaa!! Perrrfect answer.   in 1   votes   )     [?]
 
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