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

Home > Numbers
Twice true (Posted on 2011-03-24) Difficulty: 3 of 5
LIX+LVI=CXV ; X*X=C
The above equations are true both as Roman expressions and as alphametics, where each letter denotes Arabic numeral. What is the unique solution?

  Submitted by Ady TZIDON    
Rating: 4.5000 (2 votes)
Solution: (Hide)
Clearly, X=3, so C=9.
So, L = 4. and I+V=13 & V-I=3.
Summing those 2 equations we get I=5 and V=8.

The answer therefore is 453+485=938.
Detailed explanation: see all the posts.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolution!Math Man2011-03-30 16:52:31
SolutionSolutionDej Mar2011-03-24 11:59:12
Solutionfull solutionJer2011-03-24 11:09:02
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (5)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information