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

Home > Just Math
Two sums of digits (Posted on 2017-09-02) Difficulty: 2 of 5

Believe me - there are numerous solutions of the above alphametic.

I. What is the minimal possible sum of participating digits?
ii. Same question for as+df=gh

No Solution Yet Submitted by Ady TZIDON    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution Part 2 (spoiler) | Comment 3 of 5 |
17 is the minimal possible sum.

For instance, 13 + 27 = 40

This is clearly better than using 1-6 (sums to 21), so we need a solution with a 0.

0 - 5 does not work because we need two digits that sum to 10.

0 1 2 3 4 6 Does not work.  Since we need a carry,  the sum of the digits must be odd.

And any other solution sums to more than 17.

  Posted by Steve Herman on 2017-09-02 12:55:52
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (4)
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 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information