According to the Barbie web site, "this one doll is a $1.9 billion a year industry, with two Barbies being bought every second."
What is the average cost of one Barbie, given the information above?
Solution to the Problem:
The answer is $30.10.There are 3,600 seconds x 24 hours x 365.25 days per year = 31,557,600 seconds in an average year. If two Barbies are sold every second, then 63,115,200 Barbie dolls are sold annually. This works out to an average cost of 1,900,000,000 / 63,115,200 = $30.10 each.
Correctly solved by:
| 1. Mike Singer | Winchester, Virginia |
| 2. Sagar Patel | Columbus, Georgia |
| 3. Walt Arrison | Philadelphia, Pennsylvania |
| 4. John Funk | Ventura, California |
| 5. Jonas Arvidson | Tullängsskolan, Örebro, Sweden |
| 6. Rickard Jansson | Tullängsskolan, Örebro, Sweden |
| 7. Wictoria Widén | Tullängsskolan, Örebro, Sweden |
| 8. Slayton Gilmore | Columbus, Georgia |
| 9. Erin Fennacy | Fresno, California |
| 10. Tom Robb | Winchester, Virginia |
| 11. Tristan Collins | Virginia Tech Blacksburg, Virginia |
| 12. Elizabeth Carlson | Winchester, Virginia |
| 13. Charles Washington | Winchester, Virginia |
| 14. Gusti Oggenfuss | Centre de Rencontre Montet (Broye), Switzerland |
| 15. CJ Pearson | Asheville, North Carolina |
|
16. Jasmine Jones Tashema Brown |
Asheville, North Carolina |
| 17. Anil Nataraj | Columbus, Georgia |
| 18. Heather Brown | Winchester, Virginia |
| 19. Britney White | Columbus, Georgia |
| 20. Carter Galbraith | Columbus, Georgia |
| 21. Yani Stalev | Winchester, Virginia |
| 22. Russell Beaty | Columbus, Georgia |
| 23. Patrick Chu | Harrisonburg, Virginia |
| 24. Ashley Faucher | Winchester, Virginia |
| 25. Zaza Carlzon | Tullangen, Örebro, Sweden |
| 26. James Alarie | University of Michigan -- Flint Flint, Michigan |
| 27. Sharina Smith | Newport News, Virginia |
| 28. John DeBergh | Winchester, Virginia |
| 29. Jo Monhollen | Pasadena City College Pasadena, California |
| 30. Elizabeth Honeyman | ---------- |
| 31. David & Judy Dixon | Bennettsville, South Carolina |
| 32. Patrick McDuffee | Harrisonburg, Virginia |
| 33. Keith Mealy | Cincinnati, Ohio |
| 34. Maggie Morrison | Winchester, Virginia |
| 35. Quentin Shank | Harrisonburg, Virginia |
| 36. B. Murphy | ---------- |
| 37. Praveen Nandamuru | Columbus, Georgia |
| 38. Olivia Quach | Harrisonburg, Virginia |
| 39. Lane Newton | Harrisonburg, Virginia |
| 40. Charlie Cumiskey | Columbus, Georgia |
| 41. Avery Acuff | Columbus, Georgia |
| 42. Bobby Arthur | Winchester, Virginia |
| 43. William Nocella | --------- |
| 44. Julianne Harris | Winchester, Virginia |
| 45. Cerena Uttal | Winchester, Virginia |
| 46. Matt Arnsbrak | Winchester, Virginia |
| 47. Eric Harding | Fort Collins, Colorado |
| 48. Richard Johnson | La Jolla, California |
| 49. Malin Fredriksson | Tullängsskolan, Örebro, Sweden |
| 50. Rachel Pridgen | Columbus, Georgia |
| 51. Stephen O'Hara | Winchester, Virginia |
| 52. Jeff MacKenzie | Winchester, Virginia |
| 53. Andrew Barnes | Winchester, Virginia |
| 54. Caitlin Bitto | Winchester, Virginia |
| 55. Ashley Hudson | Harrisonburg, Virginia |
| 56. Henry Tran | Harrisonburg Virginia |
| 57. Joakim Olsson | Tullängsskolan, Örebro, Sweden |
| 58. Krille Jansson | Tullängsskolan, Örebro, Sweden |
| 59. Danny Gordon | Columbus, Georgia |
| 60. Mattias Tyresgård | ---------- |
| 61. Erika Skoglund | Tullängen, Örebro, Sweden |
| 62. Jeffrey Gaither | University of Virginia Charlottesville, Virginia |
| 63. Chris Jansson | Tullängskolan, Örebro, Sweden |
| 64. Rohit Beheraj | Harrisonburg Virginia |