+ Reply to Thread
Results 1 to 3 of 3

Thread: How many ways can a school president, vice pres, and secretary be selected from the 21 students of the council?

  1. 06-20-2012, 02:31 PM #1
    Academics
    Academics is offline
    Level 15 - A Legend Academics's Avatar
    Joined
    Feb 2012
    Posts
    1,737

    How many ways can a school president, vice pres, and secretary be selected from the 21 students of the council?

    In how many ways can a school president, a vice president, and a secretary be selected from the 21 students comprising the student council?
    Reply With Quote Reply With Quote
  2. 06-20-2012, 02:31 PMSponsors
    Peeje is online now
    Super ModeratorPeeje's Avatar
    Joined
    Nov 2011
    Posts
    164
    Videos
    139
  3. 06-20-2012, 02:31 PM #2
    kageyama
    kageyama is offline
    Level 16 - Colossus kageyama's Avatar
    Joined
    Jan 2012
    Posts
    2,185
    (21)(20)(19)=7980 ways
    Reply With Quote Reply With Quote
  4. 06-20-2012, 04:31 PM #3
    elvera
    elvera is offline
    Level 16 - Colossus elvera's Avatar
    Joined
    Jan 2012
    Posts
    2,269
    21!/(21 - 3)! = 7980 possible combinations

    I hope this helps!
    Reply With Quote Reply With Quote
+ Reply to Thread
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Forum Rules