A community for students.

    Here's the question you clicked on:

    55 members online
    • 0 replying
    • 0 viewing


    • 2 years ago

    How many 3 digit positive even integers are there, such that all the digits are distinct from each other?

    • This Question is Open
    1. RadEn
      • 2 years ago
      Best Response
      You've already chosen the best response.
      Medals 1

      case I : if the last digit be 0, then the position at the first number we can take 9 possible ways, and the 2nd position number there are 8 possible ways. it can represented be 9*8 = 72 ways case II : if the last digit is not 0, so there are 4 possible ways (2,4,6,8) for the last digit, then the position at the first we can take 8 possible ways,and the 2nd position there are 8 possible ways. it can represented be 8*8*4 = 256 ways. so, the total way = 72+256 = 328

    2. Not the answer you are looking for?
      Search for more explanations.

      • Attachments:

    Ask your own question

    Sign Up
    Find more explanations on OpenStudy
    Privacy Policy

    Your question is ready. Sign up for free to start getting answers.

    spraguer (Moderator)
    5 → View Detailed Profile

    is replying to Can someone tell me what button the professor is hitting...


    • Teamwork 19 Teammate
    • Problem Solving 19 Hero
    • You have blocked this person.
    • ✔ You're a fan Checking fan status...

    Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

    This is the testimonial you wrote.
    You haven't written a testimonial for Owlfred.