Answer to June 2, 2003 Problem |
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Magic Square
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The following is an example of a magic square, five of whose entries are missing. Determine the missing entries A, B, C, D, and E so the sum of each row, column, and diagonal is the same. | |||||||||
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Solution:
A = 13
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Since the 3 numbers in each row must be the same,
equate the middle row and the last column to find C:
6.75 + C + D = 10.5 + D + 5.5 Therefore C = 16 - 6.75 = 9.25
Then the magic sum must be 8 + 9.25 + 10.5 = 27.75.
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1. Rick Jones | Kennett Square, Pennsylvania |
2. Walt Arrison | Philadelphia, Pennsylvania |
3. Richard Johnson | La Jolla, California |
4. William Funk | San Antonio, Texas |
5. Misty Carlisle | Winchester, Virginia |
6. John Funk | Ventura, California |
7. John Beasley | Winchester, Virginia |
8. James Alarie | University of Michigan -- Flint, Flint, Michigan |
9. Bob Hearn | Winchester, Virginia |
10. Dash Waughquasebarth | Winchester, Virginia |
11. Jeffrey Gaither | Winchester, Virginia |
12. George Gaither | Winchester, Virginia |
13. Josh Feingold | Winchester, Virginia |
14. Kirstine Wynn | Bellingham, Washington |
15. David and Judy Dixon | Bennettsville, South Carolina |