Elementary Brain Teaser




What Coins?

A kid has $3.15 in US coins but only dimes and quarters. There are more quarters than dimes. How many of each coin does the kid have? Explain how you got your answer.

Correct Solutions:


  1. Katie Duncan. Oak Ridge ES, Oak Ridge, NC
  2. Ben Barrow. Northwest MS, Greensboro, NC
  3. Mike Simonian. Walnut Creek MS, Erie, PA
  4. Amy Wojtkielewicz. Ridgefield ES, Erie, PA
  5. Hannah Gordon. Tracy ES, Easton, PA
  6. Adam Maberry. Buchanan ES, Pierre, SD
  7. Erica Bell. St. Mary Magdalen, Hazel Park, MI
  8. Yusuke Hirata. La Entrada MS, Menlo Park, CA
  9. Justin Gibson. Geneva ES, Geneva, FL
  10. Abraham Thomas. Colton ES, Spring Valley, NY
  11. Francesca Ball. Colton ES, Spring Valley, NY
  12. Leena Daniel. Colton ES, Spring Valley, NY
  13. Jaclyn Mackawgy. Colton ES, Spring Valley, NY
  14. Talha Anwar. Colton ES, Spring Valley, NY
  15. Adam Browning. Colton ES, Spring Valley, NY
  16. Michelle Ly. Colton ES, Spring Valley, NY
  17. Eugene Berger. Colton ES, Spring Valley, NY
  18. Osman Bhatty. Colton ES, Spring Valley, NY
  19. Benjamin Del valle. Colton ES, Spring Valley, NY
  20. R.T. Andaloro. Colton ES, Spring Valley, NY
  21. Adam Basile. Colton ES, Spring Valley, NY
  22. Devin Cozart. Colton ES, Spring Valley, NY
  23. Jaskaran Singh. Rainbow ES, Winter Springs, FL
  24. Robby Hunn. Geneva ES, Geneva, FL
  25. Baxter Odum. Briarhill MS, Highland Village, TX
  26. Kelly McGarrey. Asbury ES, Erie, PA
  27. Dustin Hundza. Southeast MS, Ravenna, Ohio
  28. Alex King. Rainbow ES, Winter Springs, FL
  29. Brian Gorby. Southeast MS, Ravenna, Ohio
  30. Mark Nuttall. Challenger ES, Huntsville, AL
  31. Anita Chopra. Middlebury PS, Mississauga, Ontario, Canada
  32. Amanda Haller. Walnut Creek MS, Erie, PA
  33. Adam Shore. Walnut Creek MS, Erie, PA
  34. Molly Ackerman. Walnut Creek MS, Erie, PA
  35. Matthew Detisch. Walnut Creek MS, Erie, PA
  36. Adam Morrison. Walnut Creek MS, Erie, PA
  37. Matt Zacour. Walnut Creek MS, Erie, PA
  38. Steve Kiehl. Walnut Creek MS, Erie, PA
  39. Natasa Milicevic. Walnut Creek MS, Erie, PA
  40. Elise Hernandez. Rainbow ES, Winter Springs, FL
  41. Aubrey Wingo. Rainbow ES, Winter Springs, FL
  42. Brad Cottle. Walnut Creek MS, Erie, PA
  43. Sam Laver. Walnut Creek MS, Erie, PA
  44. Kasey DeDad. Walnut Creek MS, Erie, PA
  45. Sean Fedorko. Walnut Creek MS, Erie, PA
  46. Danielle Viculis. Rainbow ES, Winter Springs, FL
  47. Brett St.Onge. Rainbow ES, Winter Springs, FL
  48. Suvadip Podder. Norcross ES, Norcross, GA
  49. Kevin Nethers. Rainbow ES, Winter Springs, FL
  50. J.J. McFadden. Rainbow ES, Winter Springs, FL
  51. Thanh Nguyen. Norcross ES, Norcross, GA
  52. Jordan Liles. Rainbow ES, Winter Springs, FL
  53. Jahann Griffin. Norcross ES, Norcross, GA
  54. Scott Chase. Rainbow ES, Winter Springs, FL
  55. Elexia Machoka. Norcross ES, Norcross, GA
  56. George Waters. Rainbow ES, Winter Springs, FL
  57. Jennifer Stewart. Rainbow ES, Winter Springs, FL
  58. Caleb Johnson. Geneva ES, Geneva, FL
  59. Henry Jaeger. Geneva ES, Geneva, FL
  60. Paul Schlabach. Walnut Creek MS, Erie, PA
  61. Kelly Hickin. Walnut Creek MS, Erie, PA
  62. Matthew Higby. Walnut Creek MS, Erie, PA
  63. James Britton. Walnut Creek MS, Erie, PA
  64. Adam Thornton. Walnut Creek MS, Erie, PA
  65. Kathleen Murrah. Geneva ES, Geneva, FL
  66. Caleb Davis. Geneva ES, Geneva ,FL
  67. Brian VanHoozer. Walnut Creek MS, Erie, PA
  68. Adam Hammerlee. Walnut Creek MS, Erie, PA
  69. Kaley Jackson. Rainbow ES,Winter Springs, FL
  70. Michael Richter. Walnut Creek MS, Erie, PA
  71. Kevin Kluczynski. Walnut Creek MS, Erie, PA
  72. Jim Rowley. Walnut Creek MS, Erie, PA
  73. Edward Szymanowski. Walnut Creek MS, Erie, PA
  74. Kevin Weaver. Walnut Creek MS, Erie, PA
  75. Amanda Way. Walnut Creek MS, Erie, PA
  76. Dan Sockett. Walnut Creek MS, Erie, PA
  77. Devin Wise. Pine Tree Hiil ES, Camden, SC
  78. Jacob Adelman . Pine Tree Hiil ES, Camden, SC
  79. Kylie Danowski. Walnut Creek MS, Erie, PA
  80. Adrian Khoo. Ferris School, Richmond, BC, Canada
  81. Trace Aber. Englewood Hills ES, Englewood, OH
  82. Greg Tanner. Briarhill MS. Highland Village, TX
  83. Lindsay Jenkins. Briarhill MS. Highland Village, TX
  84. Michael Combs. Walnut Creek MS, Erie, PA
  85. Kevin Schreck. Cross Lanes ES, Cross Lanes, WV
  86. Mark Schreck. Cross Lanes ES, Cross Lanes, WV
  87. Jerry Cowley. Charles Sinclair School, Koostatak, Manitoba, Canada
  88. Leslie Satchfield. Palms ES, Fair Haven, MI
  89. Megan Marquis. Walnut Creek MS, Erie, PA
  90. Jenni Hilbert. Walnut Creek MS, Erie, PA
  91. Aaron Hale. Walnut Creek MS, Erie, PA
  92. Erica DeWolf. Walnut Creek MS, Erie, PA
  93. Thomas Welch. Rainbow ES, Winter Springs, FL
  94. Stephanie Jakiel. Walnut Creek MS, Erie, PA
  95. Ryan Harris. Walnut Creek MS, Erie, PA
  96. Alexander Lu. Walnut Creek MS, Erie , PA
  97. Edward Sokolowski. Rainbow ES, Winter Springs, FL
  98. Lucas Ojala. Rutland Town School, Rutland, VT
  99. Seth Hubbard. Rutland Town School, Rutland, VT
  100. Dalma Ruelas. Norcross ES, Norcross, GA
  101. Anthony Flowers. Norcross ES, Norcross, GA
  102. Carolyn Johnson. MacNeill School, Regina, SK, Canada
  103. Ashley Albinson. Rainbow ES, Winter Springs, FL
  104. Edward Singleton. Norcross ES, Norcross, GA
  105. Benito Miranda. Norcross ES, Norcross, GA
  106. Ana Gutierrez. Norcross ES, Norcross, GA
  107. Alyssa Gomez. Rainbow ES, Winter Springs, FL
  108. Brett Hodges. Rainbow ES, Winter Springs, FL
  109. Devin Brown. Norcross ES, Norcross, GA
  110. Aaron Bisbee. Walnut Creek MS, Erie, PA
  111. Jose Valdez. Norcross ES, Norcross, GA
  112. Stephanie Ramswinter. Highland ES, Apple Valley, MN
  113. Naomi Zeichner. Barnett Shoals ES, Athens, GA
  114. Christina Faust. Barnett Shoals ES, Athens, GA
  115. Alex Terry. Barnett Shoals ES, Athens, GA
  116. Isaac Piha. Barnett Shoals ES, Athens, GA
  117. Elie Piha. Barnett Shoals ES, Athens, GA
  118. Catherine Reagan. Barnett Shoals ES, Athens, GA
  119. Hayden Jagor. Barnett Shoals ES, Athens, GA
  120. Stephanie Petter. Barnett Shoals ES, Athens, GA
  121. Judy Bau. Barnett Shoals ES, Athens, GA
  122. Marta Gaertig. Barnett Shoals ES, Athens, GA
  123. Samantha lawson. Barnett Shoals ES, Athens, GA
  124. Sunny Jeong. Barnett Shoals ES, Athens, GA
  125. Michael Brown. Geneva ES, Geneva, FL
  126. Jameson Strohaker. Geneva ES, Geneva, FL
  127. Justin Edge. Geneva ES, Geneva, FL
  128. Nichole Orsini. Walnut Creek MS, Erie PA
  129. Jessica Baumann. Walnut Creek MS, Erie, PA
  130. Jason Strouse. Geneva ES, Geneva, FL
  131. Max Bennett. Geneva ES, Geneva, FL
  132. Vanessa Cichon. Rainbow ES, Winter Springs, FL
  133. Melissa Lupo. Walnut Creek MS, Erie, PA
  134. Emily Dopierala. Walnut Creek MS, Erie, PA
  135. Kevin Schein. Rainbow ES, Winter Springs, FL
  136. Damaris Britton. Rainbow ES, Winter Springs, FL
  137. Kuniaki Shiraiwa. Rainbow ES, Winter Springs, FL
  138. Jessica Hiddleson. Sunrise ES, Albany, OR
  139. Jeromy Chandler. Sunrise ES, Albany, OR
  140. Heather Dahlstrom. Sunrise ES, Albany, OR
  141. Tim Machado. Sunrise ES, Albany, OR
  142. Sarah Patterson. Walnut Creek MS, Erie, PA
  143. Benjamin Detter. Walnut Creek MS, Erie, PA
  144. Tony Lindsey. Walnut Creek MS, Erie, PA
  145. Ashley Jasmin. Colton ES, Spring Valley, NY
  146. John Abarham. Colton ES, Spring Valley, NY
  147. Lynn Leandre. Colton ES, Spring Valley, NY
  148. Jordan Laloan. Colton ES, Spring Valley, NY
  149. Nithin Thomas. Colton ES, Spring Valley, NY
  150. Matthew Ortega. Colton ES, Spring Valley, NY
  151. Daniel Guanzon. Colton ES, Spring Valley, NY
  152. Josh Dusek. Chief Joseph, Great Falls, MO
  153. Mitchell Reese. Chief Joseph, Great Falls, MO
  154. Karla Benitez. Sunrise ES, Albany, OR
  155. Justin Murphy. Sunrise ES, Albany, OR
  156. Michelle Williams. Sunrise ES, Albany, OR
  157. Jessica Moore. Sunrise ES, Albany, OR
  158. Candi Dumas. Sunrise ES, Albany, OR
  159. Kim Hoang. Rainbow ES, Winter Springs, FL
  160. Ashley Walthour-Watts. Norcross ES, Norcross, GA
  161. Megan Haddock. Rainbow ES, Winter Springs, FL
  162. Caroline Bowman. Barnett Shoals School, Athens, GA
  163. Evelyn Gonzalez. Norcross ES, Norcross ,GA
  164. Annalice Richardson. Norcross ES, Norcross, GA
  165. Stephanie Menendez. Norcross ES, Norcross, GA
  166. Jenna Colonel. Rainbow ES, Winter Springs, FL
  167. Thi Nguyen. Norcross ES, Norcross, GA
  168. Chris Patton. Norcross ES, Norcross, GA
  169. Josh Horvath. Rutland Town School, Rutland, VT
  170. Tracy Foessett. Walnut Creek MS, Erie, PA
  171. Mathew Dutt. Buchanan ES, Pierre, SD
  172. Illania Nelson. Rainbow ES, Winter Springs, FL
  173. Mike Van Diggelen. Rainbow ES, Winter Springs, FL
  174. Vanessa Pattillo. Rainbow ES, Winter Springs, FL
  175. Brittany Tran. Rainbow ES, Winter Springs, FL
  176. Jared Dutton. Buchanan ES, Pierre, SD
  177. Ashley Gaynor. Rainbow ES, Winter Springs, FL
  178. Amanda Townsend. Rainbow ES, Winter Springs, FL
  179. Linh DO. Norcross ES, Norcross, GA
  180. Nick Calvoni. Rainbow ES, Winter Springs, FL
  181. Brandi Lyle. Norcross ES, Norcross, GA
  182. Robbie Harrison. Geneva ES, Geneva, FL
  183. Megan Robinson. Rainbow ES, Winter Springs, FL
  184. Michael Clark Jr. Geneva ES, Geneva, FL
  185. Alex McMullen. Norcross ES, Norcross, GA
  186. Giovanni Garcia. Norcross ES, Norcross, GA
  187. Sayo Benson. Norcross ES, Norcross, GA
  188. Lindon Thomas. Walnut Creek MS, Erie, PA
  189. Nick Midura-Ellis. Lincoln Akerman School, Hampton Falls, NH
  190. K.C. Smith. Lincoln Akerman School, Hampton Falls, NH
  191. Rossli Chace. Lincoln Akerman School, Hampton Falls, NH
  192. Tia Pydynkowski. Lincoln Akerman School, Hampton Falls, NH
  193. Ryab Halko. Walnut Creek MS, Erie, PA
  194. David Barbour. Rainbow ES, Winter Springs, FL
  195. Nicole McCall. Geneva ES, Geneva, FL
  196. Shannon Crawford. Geneva ES, Geneva, FL
  197. Rachael Harrison. Geneva ES, Geneva, FL
  198. Heather Hughey. Geneva ES, Geneva, FL
  199. Andrew Barlow. Sunrise School, Albany, OR
  200. Afton Nickell. Sunrise School, Albany, OR
  201. Tom Clement. Sunrise School, Albany, OR
  202. Mike Moore. Sunrise School, Albany, OR
  203. Doris Matthews. Sunrise School, Albany, OR
  204. Stephanie Parker. Sacred Heart School, Boise, ID
  205. Bradley Heitkamp. Southeast MS, Ravenna, OH
  206. Cody Lewis. Southeast MS, Ravenna, OH
  207. Alex Barkley. Southeast MS, Ravenna, OH
  208. Matt Farley. Southeast MS, Ravenna, OH
  209. Stefanie Trompetter. Cocopah MS, Scottsdale, AZ
  210. Leonard Anghelescu. Broadlands PS, North York, ON, Canada
  211. Stephen Rose. Lake View School, Worcester, MA
  212. Juan C. Rivera. Kilpatrick ES, Jonesboro, GA
  213. Matt Farley. Southeast MS, Ravenna, OH
  214. Bradley Heitkamp. Southeast MS, Ravenna, OH
  215. Alex Barkley. Southeast MS, Ravenna, OH
  216. Cody Lewis. Southeast MS, Ravenna, OH
  217. Helen Jervey. Waterford ES, Orlando, FL
  218. Alex Jitariu. Kingslake PS, ON, Canada
  219. Corey Henningsen. Englewood Hills ES, Englewood, OH
  220. Michael Alves. Old Hammondtown School, Mattapoisett, MA
  221. Corey Henningsen. Englewood Hills ES, Englewood, OH
  222. Tim Cameron. Castor Valley PS, Osgoode, Ontario, Canada
  223. Andy Cameron. Castor Valley PS, Osgoode, Ontario, Canada





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