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

Home > Numbers
Missing Duodecimal Digit Determination (Posted on 2022-08-04) Difficulty: 3 of 5
If the duodecimal number A7?B5? is divisible by (83)base 12, then determine the missing digits.
** Each question mark represents a duodecimal digit, whether same or different.

See The Solution Submitted by K Sengupta    
Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts re: solution | Comment 4 of 6 |
(In reply to solution by xdog)

I'd very much like to hyperlink your solution, since it would serve as a nice alternative methodology to my official solution..


 However there is at least one step missing in your solution.. 
 You wrote: 
"To be divisible by 11 requires 10+7+X+63 divisible by 11 so x=8"

 Please state that:
"B and A are respectively 11 and 10 in base ten.
Therefore, to be divisible by 11 requires 10 +7+X +63 divisible by 11 so x=8"

Also, you must state that :
"99 = 9*11"

Edited on August 5, 2022, 1:25 am
  Posted by K Sengupta on 2022-08-05 01:03:51

Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information