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

Home > Numbers
Just Keep the Change (Posted on 2003-06-15) Difficulty: 3 of 5
In a certain country, it takes a minimum of exactly 5 coins to make 13 cents, and a minimum of exactly 4 coins to make 14 cents.

What are the denominations of the coins (of value less than 15 cents) in this country?

Bonus: What country is it?

See The Solution Submitted by DJ    
Rating: 4.1818 (11 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(3): Country | Comment 10 of 13 |
(In reply to re(2): Country by Jonny Doe)

England won't work because of the other small coins: 13 can be done in 4 coins in several ways: 1+1+1+10; 1+2+5+5 (it can even be done in three coins: 1+2+10.); 14 can be done in three coins: 2+2+10.

Not only does the country need a "2" and a "5" coin, but they can be the only denominations under 15
  Posted by TomM on 2003-06-16 19:50:28

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

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information