Answer to Problem of the Month for March 2007

I have ten U.S. coins worth a total of $1.19. But if you give me a dollar bill, it is not possible for me to give you exactly a dollar's worth of change in return.

If one of my coins is a half dollar, what are the other nine coins?

Solution to the Problem:

Besides the half dollar, I have a quarter, four dimes, and four pennies.

David & Judy Dixon sent in the following solution using US coins that are no longer minted.

# Coins  Value    Total  
1        $0.50    $0.50
1        $0.25    $0.25
3        $0.10    $0.30  
4        $0.03    $0.12      No longer minted
1        $0.02    $0.02      No longer minted  
________________________
10                $1.19

Correctly solved by:

1. James Alarie	University of Michigan -- Flint Flint, Michigan
2. Sagar Patel	Brookstone School Columbus, Georgia
3. Shaan Arora	Brookstone School Columbus, Georgia
4. Richard K. Johnson	La Jolla, California
5. David & Judy Dixon	Bennettsville, South Carolina
6. Neal Amos	Brookstone School Columbus, Georgia
7. Tristan Collins	Virginia Tech Blacksburg, Virginia
8. Luke Mansour	Columbus, Georgia
9. Tori Kennedy	Brookstone School Columbus, Georgia
10. Mr. Robb's 1st Block Discrete Math Class	John Handley High School Winchester, Virginia
11. Magdy Essafty	Alexandria, Egypt
12. John Funk	Ventura, California

March 2007 Problem of the Month

Correctly solved by:

March 2007
Problem of the Month