Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to find the # of possilibities?

  1. Oct 27, 2004 #1
    If I have a combination of numbers and letters (number-letter-number - examples: 1j5, 3f5) then how can I find the number of possibilities?

    So, number-10 possibilities, letter-26 possibilities, number-10 possibilities.

  2. jcsd
  3. Oct 27, 2004 #2


    User Avatar
    Science Advisor
    Gold Member

    If we're talking permuataions (edited to add I know you siad combinations which are different, but you implied some sort of order) here it's simply 10*26*10 = 2600
    Last edited: Oct 27, 2004
  4. Oct 27, 2004 #3
    ah yes, it's all coming back to me now :) thanks
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook