Elementary Brain Teaser


Send Answer to:mathed@pegasus.cc.ucf.edu



The Train

How long will it take a mile long train going 15 miles per hour to get completely through a mile long tunnel?


Correct Solutions:
  1. Maria Chen. Mesa Verde MS, San Diego, CA
  2. Robby Hunn. Geneva ES, Geneva, FL
  3. Kayla Locke. Geneva ES, Geneva, FL
  4. Matthew Brown. Geneva ES, Geneva, FL
  5. James Helbig. Colton ES, Spring Valley, NY
  6. Roger Kwan. Park Village ES, San Diego, CA
  7. Adam Bolin. Briarhill MS, Highland Village, TX
  8. Leonard Anghelescu. Broadlands PS, North York, ON, Canada
  9. Matthew Munafo. Illing MS, Manchester, CT
  10. Adam Maberry. Buchanan ES, Pierre, SD
  11. Ryan Newman. Buena Vista Academy, Windermere, FL
  12. Daniel Geary. Lake Highland Prep, Orlando, FL
  13. Tao Tao Chen. Ellis ES, Sunnyvale, CA
  14. Adrian Khoo. Ferris School, Richmond, BC, Canada
  15. David Stein. Rutland Town School, Rutland, VT
  16. Elise Hernandez. Rainbow ES, Winter Springs, FL
  17. Kathleen Murrah. Geneva ES, Geneva, FL
  18. R.T. Andaloro. Colton ES, Spring Valley, NY
  19. Alyssa Pratico. Rutland Town School, Rutland, VT
  20. Alicia McNeil. Rutland Town School, Rutland, VT
  21. Braeden Caley. Howard Debeck ES, Richmond, BC, Canada
  22. Duron Alexander. Pine Tree Hill ES, Camden, SC
  23. Leah Tabacsko. Handley School, Saginaw, MI
  24. Sam Pheiffer. McCoy ES, Carrollton, TX
  25. Brynn Maurer. St. Joachim School, Costa Mesa, CA
  26. Mark Seagar. Rutland Town School, Rutland, VT
  27. Michelle Lee. Geneva ES, Geneva,FL
  28. Jamie Orr. Geneva ES, Geneva,FL
  29. Drew Peterson. Rutland Town School, Rutland, VT
  30. Ashley Goldberg. Jefferson School, Jefferson, MA
  31. Lacey McElhannon. Barnett Shoals ES, Athens, GA
  32. Nate Weems. Barnett Shoals ES, Athens, GA
  33. Harrison Fay. Barnett Shoals ES, Athens, GA
  34. Charles English. Barnett Shoals ES, Athens, GA
  35. Chad Strickland. Darley ES, Huntsville, AL
  36. Andy Jones. Darley ES, Huntsville, AL
  37. Cameron Mason. Darley ES, Huntsville, AL
  38. Krystal Hsu. Darley ES, Huntsville, AL
  39. Matthew Ortega. Colton ES, Spring Valley, NY
  40. Abraham Thomas. Colton ES, Spring Valley, NY
  41. Jaclyn Mackawgy. Colton ES, Spring Valley, NY
  42. Jordan Laloan. Colton ES, Spring Valley, NY
  43. Ashley Jasmin. Colton ES, Spring Valley, NY
  44. Heidi Hays. Barnett Shoals ES, Athens, GA
  45. Christina Faust. Barnett Shoals ES, Athens, GA
  46. Nathaniel Lee. Barnett Shoals ES, Athens, GA
  47. Adam Browning. Colton ES, Spring Valley, NY
  48. Lynn Leandre. Colton ES, Spring Valley, NY
  49. Devin Cozart. Colton ES, Spring Valley, NY
  50. Andrew Marquez. Colton ES, Spring Valley, NY
  51. Nithin Thomas. Colton ES, Spring Valley, NY
  52. Kevin Schreck. Cross Lanes ES, Cross Lanes, WV
  53. Matt Simon. Laura Richards ES, Gardiner, MA
  54. Dale Coffin. Geneva ES, Geneva, FL
  55. Vince Raley, Rainbow ES, Winter Springs, FL
  56. Aubrey Wingo, Rainbow ES, Winter Springs, FL
  57. George Waters, Rainbow ES, Winter Springs, FL
  58. Lisa Rojas, Rainbow ES, Winter Springs, FL
  59. Lauren Aouate. Rainbow ES, Winter Springs, FL
  60. Meagen Hall. Rainbow ES, Winter Springs, FL
  61. Jennifer Stewart. Rainbow ES, Winter Springs, FL
  62. Edward Sokolowski. Rainbow ES, Winter Springs , FL
  63. Thomas Welch, Rainbow ES, Winter Springs, FL
  64. Kevin Schein. Rainbow ES, Winter Springs, FL
  65. Eric Konczal. Rainbow ES, Winter Springs, FL
  66. Josh Pieper. Rainbow ES, Winter Springs, FL
  67. Jordan Liles. Rainbow ES, Winter Springs, FL
  68. Amand Townsend. Rainbow ES, Winter Springs, FL
  69. Michael Scribner. Rainbow ES, Winter Springs, FL
  70. Jessy Singhk. Rainbow ES, Winter Springs, FL
  71. Allyce Pepin. Laura Richards ES, Gardiner, MA
  72. Matthew Simon. Laura Richards ES, Gardiner, MA
  73. Erin Taylor. Rainbow ES, Winter Springs, FL
  74. Talha Anwar. Colton ES, Spring Valley, NY
  75. Aliya Merchant. Gateway PS, Toronto, ON, Canada
  76. Matthew Simon. Laura E. Richards ES, Gardiner, ME
  77. Andrew Wagner. A.B. Dixon ES, Richmond, BC, Canada
  78. Sara Quinn. Lena Whitmore ES, Moscow, ID
  79. Mark Schreck. Cross Lanes ES, Cross Lanes, WV
  80. Drew Owen. Southeast MS, Ravenna, OH
  81. Andrew Tunison. Poplar ES, Fontana, CA
  82. Shane Lampkins. Palm Lake ES, Orlando, FL
  83. Leslie Satchfield. Palms ES, Fair Haven, MI
  84. Hansen Chang. Beecher Road ES, Woodbridge, CT
  85. Michael Burdin. Gardiner ES, Gardiner, ME






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