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Odd Sequence

11, 31, 71, 91, 32, 92, 13, 73, 14, 34, 74, 35, 95, . . .


Observe the sequence of numbers:

 

11, 31, 71, 91, 32, 92, 13, 73, 14, 34, 74, 35, 95, . . .

 

What would be the next two numbers in the sequence?

September 19, 2005
Past Problems  
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E-mail Solutions to: pow@umassd.edu

   
  Correct Solutions 
 
  1. Adrian Atanasiu. Bucharest, Romania
  2. Eugene Roytman. New York, NY
  3. Brian Hetrick. UNH, Manchester, NH
  4. Jerrold Greenberg. New York, NY
  5. Lisa Schechner. Schreiber High, Port Washington, NY
  6. Rafael Zambrano. Barranquilla, Colombia
  7. Mark Wintczak. Naperville, IL
  8. Radu Casian Ionescu. Montreal, Quebec, Canada
  9. Tim Poe. Austin, TX
  10. Patrick Mc Henry. Gloucester City Schools, Gloucester, MA
  11. Aristides Kyriakakis.  Thessaloniki. Greece
  12. Frank McGartland.  Saskatoon, SK., Canada.
  13. Raphael Chalhub. Pan American School of Bahia, Salvador, Bahia, Brazil
  14. Jerome Cherry. Mundare, Alberta, Canada
  15. Peter  Moynahan. Rye Junior High, Rye, NH
  16. Jovana Mitrovic. Maths High School, Belgrade, Serbia and Montenegro
  17. Luk-Zilberman. Haifa, Israel
  18. Jakob Christopher. Carwise Middle School, Palm Harbor, FL
  19. Catherine Cunningham. Creekwood Middle School, Kingwood, TX
  20. Mansi Raythatha. Creekwood Middle School, Kingwood, TX
  21. Devyn Carson. Pakersburg High School
  22. Cory Scruggs. Creekwood Middle School, Kingwood, TX
  23. Sarah Chen. Marie Curie Middle School, New York, NY
  24. Nikki Tan, Southridge, Surrey, BC Canada
  25. Leong Han, University of Malaya, Kuala Lumpur, Malaysia.
  26. Jeremy Jimenez. Cerwise Middle School Palm Harbor, FL
  27. Samantha Newhaller, Palm Harbor FL, USA
  28. Stephen Li, South Pasadena, CA, USA
  29. Adam Zeldin, Tucson High Magnet School, Tucson, AZ
  30. G. Loo
  31. Joseph Lopez. Carwise Middle School, Palm Harbor, FL
  32. Amanda Tu. Southridge School, Surrey, BC, Canada
  33. Harry Siebert. Infineon, Munich, Germany
  34. Emil Lalov. Mathematical High School, Pleven, Bulgaria
  35. Jess Wrigley. Gold Coast, Australia
  36. Navdeep Johal. Carteret High School, Carteret, NJ
  37. Omid Kohannim. UCLA, Los Angeles, California.
  38. Deb Winslow. Perkasie, PA
  39. Carl Sedgeman. Sauk Centre HS, Sauk Centre, MN
  40. Kristin Ammon. Creekwood Middle School, Kingwood, TX
  41. Bonjean Francois. Liege, Belgium
  42. Alireza Rezvani Faezifar. Tehran, Iran
  43. James McCormick, R.F. Staples, Westlock, AB
  44. Jamon Kennedy. Holton, KS
  45. Josh Andrews, Chelmsford High School, Chelsford, MA
  46. Steigen Johnson. Pan American School of Bahia, Salvador, Bahia
  47. Michael Fang. Osceola Middle School, Ocala, FL
  48. Phillip Ai. Hammarskjold Middle School, East Brunswick, NJ
  49. Paul Muiznieks, Chelmsford High School, Chelmsford, MA
  50. Dave Barron. Chelmsford High School, Chelmsford, MA
  51. Tonya Anderson. Kissimmee, FL
  52. Alessandra DeJesus, Carteret High, NJ
  53. Borys Derevyanko. Carteret High School, Carteret, NJ
  54. Gavin Tse from South Pasadena Middle School CA
  55. Seong-Ho, Lee. Saigon South International School, Ho Chi Minh, Vietnam
  56. Hai A. Luong. Carteret High School, NJ
  57. Jon Eisenberg. Dartmouth High School, Dartmouth, MA
  58. Matthew Kestenbaum. Dartmouth High School, Dartmouth, MA
  59. Lori Mann. Kissimmee, Fl
  60. Daniel Pyon. South Pasadena Middle School, South Pasadena, CA
  61. Nikki DeOcampo. Creekwood Middle School,  Kingwood, TX
  62. Bar Greengrass. Israel
  63. Brianna Loo. South Pasadena Middle School, South Pasadena, CA
  64. Jennifer Sailor, Osceola Middle School, Ocala, FL
  65. Elyssa Rautiola. Pan American School of Bahia, Bahia, Brazil
  66. Kathrin Baur. Pan American School of Bahia, Bahia, Brazil
  67. Cody Martin, Hutchinson Middle School, Hutchinson, KS
  68. Wu John Ken. Pan American School of Bahia, Salvador, Bahia, Brazil
  69. Rufus Hallam. Canterbury, England
  70. Maiane Sousa. Pan American School of Bahia, Salvador, Bahia, Brazil
  71. Ana Verena S. Nigro, Pan American School of Bahia, Salvador, BA
  72. Mason Bates. Creekwood Middle School, Kingwood, TX.
  73. Jenna Custodio. Dartmouth High School, Dartmouth, MA
  74. Gustavo Amorim. Pan American School of Bahia, Salvador, Bahia, Brazil
  75. Lorna Ferguson
  76. Kathryn Curvino, Canton Middle School, Canton, CT
  77. Carolyn Merchant. Dartmouth High School, Dartmouth, MA
  78. Genoa Warner. Dartmouth High School, Dartmouth, MA
  79. Wu Sau Wai. Pan American School of Bahia, Salvador, Bahia, Brazil,
  80. Alexandre Chalhub. Pan American School of Bahia, Salvador, Bahia, Brazil
  81. Diane Kristiansen. Westwood College, Dallas, TX
  82. Brandon Ciraco. Osceola Middle School, Ocala, FL
  83. Cray Math Project. New Castle, PA
  84. Annelise Broussard. Creekwood Middle School. Kingwood. TX
  85. Heather Sands.
  86. Jimmy Kim. Sigon South International School, Hochiminh City, Vietnam
  87. Alejandra Jiménez. Pan Amerian School of Bahia, Salvador, Bahia
  88. Milla Goldenstein. Salvador, Bahia, Brazil
  89. Bojan Ilic. Prirodno-matematicki Fakultet Nis, Serbia & Montenegro
  90. Sarah Struijk. Pan American School of Bahia, Salvador, Bahia, Brazil
  91. Alexander Kwok. South Pasadena Middle School, South Pasadeba
  92. Matt Hurst. Floyd High School, Floyd, VA
  93. Ethan Dulaney. Floyd High School, Floyd, VA
  94. Pascale Philpot. Valencia Community College, Kissimmee, FL
  95. Hamilton Hardison. University of Georgia. Athens, GA
  96. Sarah Maldonado. Creekwood Middle School, Kingwood, TX
  97. Andrew Sailor. Osceola Middle School, Ocala, FL
  98. Rachel Abadilla. Carteret High School, Carteret, NJ
  99. Alexandra Hammond. Osceola Middle School, Ocala,FL
  100. Carter Galbraith. Brookstone High School, Columbus GA
  101. Spencer Page. Chaparral High School, Parker, Colorado
  102. Sara Lochore. Creekwood Middle School, Kingwood, TX
  103. Alexander Kwok, South Pasasdena Middle School, South Pasadena
  104. Rebeca. Pan American School of Bahia, Salvador, Bahia, Brazil
  105. Paula. Pan American School of Bahia, Salvador, Bahia, Brazil
  106. Jonathan Renfrow. Creekwood Middle School, Kingwood, TX
  107. Julie Strang. Orlando, FL
  108. Ashley Card. Osceola Middle School, Ocala, FL
  109. Lei Hok Kwee, Jakarta, Indonesia
  110. Cathleen Costa. Somerset, Ma
  111. Chuck Kennedy
  112. Josh Gow. Sauk Centre HS, Sauk Centre, MN
  113. Charlotte Fowler. Daniel Webster High School
  114. Andrew Douds. Walkersville, MD
  115. Freddy Tsao. South Pasadena Middle School, South Pasadena, CA
  116. Wendy Resch. Valencia Community College
  117. Eric Ravache. Pan American School Bahia, Salvador, Bahia, Brazil.
  118. Mary Smith. Valencia Community College, Osceola Campus
  119. Cong Tian. Sachem North High School
  120. Shura Watson. Valencia  Community College, Kissimmee, FL
  121. John Jones Jr. Belleville East High School, Belleville, IL
  122. Annabel Otero. VCC, Kissimmee, FL
  123. Jennifer Rogers. Kissimmee, FL
  124. Rodrigo Santos. Pan American School of Bahia, Bahia, Brazil
  125. Ana Vitoria Suarez. Pan American School of Bahia, Salvador, BA
  126. Allysha Silva. Hastings Middle School, MA
  127. Jennifer Saum. Valencia Community College, Kissimmee, FL
  128. Neila Bazaracai. North Toronto Collegiate Institute, Toronto, Ontario, Canada
  129. Anhang Zhu. Homestead High School, Sunnyvale CA
   48% of respondents successfully answered this problem.


 



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