All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Probability
Delicate Divisibility (Posted on 2010-10-19) Difficulty: 3 of 5
For a positive base ten integer of the form ABCD drawn at random between 1111 and 9999 inclusively, determine the probability that ABCD is divisible by each of AB, AC, AD, BD and CD; but, not divisible by BC.

Note: Each of the letters in bold represents a digit from 1 to 9, whether same or different.

No Solution Yet Submitted by K Sengupta    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
partial analytical solution.broll2010-10-21 08:25:14
re(3): ABACADABrA (Solution)Jer2010-10-20 01:30:59
re(2): ABACADABrA (Solution)ed bottemiller2010-10-19 20:04:51
re: ABACADABrA (Solution)Charlie2010-10-19 19:12:46
Solutionby computerCharlie2010-10-19 19:07:05
solutioned bottemiller2010-10-19 17:54:29
SolutionABACADABrA (Solution)Jer2010-10-19 17:07:14
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (2)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (4)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2021 by Animus Pactum Consulting. All rights reserved. Privacy Information