Over the Christmas holidays, our granddaughter locked an interior door of a neighbor's home and after several unsuccessful hours of trying to unlock it, we called the local locksmith.
If the locksmith charged $9,626.09 per hour for the 23 seconds that it took for him to unlock the door, what was the amount of his bill (to the nearest cent)?
(Unfortunately, this is a true story)
Solution to the Problem:
The answer is $61.50.
Divide $9,626.09 by 3,600 seconds to determine the locksmith's rate per second -- $2.673913889 per second. Multiply this by 23 to determine the bill.
Note that at least nineteen of the forty-two correct answers came from
students at the Brookstone School in Columbus, Georgia! Congratulations!
Correctly solved by:
| 1. Jeffrey Gaither | Winchester, Virginia |
| 2. David & Judy Dixon | Bennettsville, South Carolina |
| 3. Kristofer Friman | Tullängsskolan, Sweden |
| 4. Walt Arrison | Philadelphia, Pennsylvania |
| 5. John Funk | Ventura, California |
| 6. Bill Funk | San Antonio, Texas |
| 7. Akash Patel | Columbus, Georgia |
| 8. Laura LaRusso | Winchester, Virginia |
| 9. Richard Johnson | La Jolla, California |
| 10. Viktor Bergqvist | Tullängsskolan, Sweden |
| 11. James Alarie | University of Michigan -- Flint, Flint, Michigan |
| 12. Lindsay Hawkins | Columbus, Georgia |
| 13. Claire Doiron | Columbus, Georgia |
| 14. Kiki Grainger | Columbus, Georgia |
| 15. Keith Mealy | Cincinnati, Ohio |
| 16. Lara Gutjahr | Winchester, Virginia |
| 17. Lucy Flournoy | Columbus, Georgia |
| 18. Allen Page | Columbus, Georgia |
| 19. Kelly Morrow | Columbus, Georgia |
| 20. John Beasley | Winchester, Virginia |
| 21. Mac McDonald | ---------- |
| 22. Dave Smith | Toledo, Ohio |
| 23. Andrew Marvets | Columbus, Georgia |
| 24. Zach Enumah | Columbus, Georgia |
| 25. Eweymae | ---------- |
| 26. Billy Shaheen | Columbus, Georgia |
| 27. Saxton Sharad | Columbus, Georgia |
| 28. Martha Johnston | Columbus, Georgia |
| 29. Bkbees | ---------- |
| 30. Shannon Bagshaw | Winchester, Virginia |
| 31. Britney Ford | Winchester, Virginia |
| 32. Mitchell Lane | Columbus, Georgia |
| 33. Patrick Mize | Columbus, Georgia |
| 34. Franklin Harcourt | Columbus, Georgia |
| 35. Kenan Kaya | Tullängsskolan, Sweden |
| 36. Christen Bartley | Columbus, Georgia |
| 37. Cady Ciuba | Columbus, Georgia |
| 38. Jo Monhollen | Winchester, Virginia |
| 39. Matthew Reames | Roanoke, Virginia |
| 40. Irene Mathieu | Winchester, Virginia |
| 41. Dick Norman | Columbus, Georgia |
| 42. Joo-Ri Lee | Columbus, Georgia |