How many 3-digit positive integrs are odd and do not contain the digit "5"?

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• Re: How many 3-digit positive integrs are odd and do not contain the digit "5"?
  ... > How many 3-digit positive integrs are odd and do not contain the digit ... Prev by Date: ...
  (sci.math)
• Re: How many 3-digit positive integrs are odd and do not contain the digit "5"?
  ... >How many 3-digit positive integrs are odd and do not contain the digit ... Imagine choosing the digits sequentially, ... How many choices for the first digit? ...
  (sci.math)
• Re: Even numbered 3 dis that go through a city but the parent doesnt
  ... I recall reading a description of the logic of 3di numbering that explained that even ones are supposed to bypass something while odd ones are supposed to go to something. ... The hundreds digit implies a loop that will return to the base highway, but in actual practice seems to mean "will return to some Interstate. ...
  (misc.transport.road)
• Re: Paper & pencil password algorithm
  ... trickier to imagine a matrix that performs an ordered accumulative sum ... of the digits with an additional one added in on the leftmost digit. ... One non-linear step is enough isn't it? ... Take one secret digit, let's say 1, an odd number, so write the first ...
  (sci.crypt)
• Re: Paper & pencil password algorithm
  ... of the digits with an additional one added in on the leftmost digit. ... Take one secret digit, let's say 1, an odd number, so write the first ... Multiplying each digit by a constant is linear as well (just think ... I'd encode the message using some constrained character sets: ...
  (sci.crypt)