Results 1 to 2 of 2

Thread: Combination

  1. #1
    Moderator
    Join Date
    Oct 2005
    Answers
    305

    Combination

    How many possible combinations are possible in a three digit with numbers 0-9

    NOTE : [This question was asked by kimberly]


  2. #2
    Expert Member
    Join Date
    Jun 2006
    Answers
    410

    Re: Combination

    Answer is 9 * 10 * 10 = 900

    First digit can not be 0 and it can be any number between 1 to 9. it can be arranged in 9 diff ways.

    Second degit can have 0. There can have any number between 0-9 -- 10 diff ways.

    For the third digit it is similar as 2 nd digit.

    Hence there are 900 diff combinations of 3 digit number are avilable.

    But for this question we don't have to apply the above standard method of solving this kind of problem. Because this just needs the number of numbers between 100 to 999. It is obviously 900.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Applying for a job can be a stressful and frustrating experience, especially for someone who has never done it before. Considering that you are competing for the position with a at least a dozen other applicants, it is imperative that you thoroughly prepare for the job interview, in order to stand a good chance of getting hired. That's where GeekInterview can help.
Interact