Elementary Brain Teaser

Witch Books - February 05, 2007

At a particular bookstore, the first Harry Potter book and the second Harry Potter book together cost $45 (excluding any taxes).  Two copies of the first Harry Potter book and 3 copies of the second Harry Potter book cost a total of $125.  At this bookstore, how much is one copy of the first Harry Potter book?

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1. Dan Liang. Garden Hills School, Champaign, IL USA
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11. Lauren Biederman. Rutland Town Elementary School, Rutland, VT USA
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18. Jessica Fan. MUES, Moorestown, NJ USA
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21. Everett Smith. Roosevelt Elementary School, Boise, ID USA
22. Meredith Flury. Beacon Elementary School, Hilliard, OH USA
23. Ben Shaffer. Mercer Elementary School, Mercer, PA USA
24. Mason Dietrich. South Polk Elementary School, Fort Polk, LA USA
25. Riley Bunch. Kingston Elementary School, Kingston, TN USA
26. Jessica Fan. MUES, Moorestown, NJ USA
27. Travis Redman. Rutland Town School, Rutland, VT USA
28. Janson Ng. Singapore International School, Hong Kong, Hong Kong
29. Cara Justine Teo Ong. The Beacon School, Imus, Philippines
30. Stephen Chi Kong Ng. Singapore International School, Hong Kong, Hong Kong
31. Albert Li. Marengo Elementary School, South Pasadena, CA USA
32. Paul Banyi. Highlands Elementary School, Santa Clarita, CA USA
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34. Luke Rush. Remington Elementary School, Tulsa, OK USA
35. Kirstin Carrico. Remington Elementary School, Tulsa, OK USA
36. Christina Medwid. Riverview Public School, Dryden, Canada
37. Colin Hicks. Remington Elementary School, Tulsa, OK USA
38. Rebecca Kennedy. Riverview School, Dryden, Canada
39. Tyler Stoiber. Riverview Public School, Dryden, Canada
40. Samantha Smith. Riverview School, Dryden, Canada
41. Cody Saunders. Riverview Public School, Dryden, Canada
42. Glen Moody- Elias. Riverview School, Dryden, Canada
43. Abby Bartlett. Riverview School, Dryden, Canada
44. Kaitlyn Kahala. Remington Elementary School, Tulsa, OK USA
45. Hannah Franzoni. Rutland Town School, Rutland Town, VT USA
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52. Sameeksha Malhotra. Garden Gate Elementary School, Cupertino, CA USA
53. Michelle Aitken. Lowndes Academy, Hope Hull, AL USA
54. Sudeshna Pontula. School, Bartlesville, OK USA
55. Elizabeth Ann. Robert M. Martin Elementary School, Wichita, KS USA
56. Loretta Peffers. South Polk Elementary School, Fort Polk, LA USA
57. William Long. Remington Elementary School, Tulsa, OK USA
58. Micah Cash. Remington Elementary School, Tulsa, OK USA
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60. Chris Stanbridge. Highlands Elementary School, Saugus, CA USA
61. Irene Tang. Marengo Elementary School, South Pasadena, CA USA
62. E Sung. Kinkaid School, Houston, TX USA
63. Rebecca Barrios. Highlands Elementary School, Saugus, CA USA
64. Cole Harmon. Harris County School, Fortson, GA USA
65. Brenda Xu. Addison Elementary School, Palo Alto, CA USA
66. Maresa Bowen. Rutland Town School, Rutland Town, VT USA
67. Rebecca Shaffer. Mercer Elementary School, Mercer, PA USA
68. Kevin Nelson. Emerald Heights School, Silverdale, WA USA
69. Ioana Dobre. Rennies River Elementary School, St. Johns, Canada
70. Jesse B.. Union Point Elementary School, Union Point, GA USA
71. Kevin & Willie Dong. Mission Hill Middle School, Santa Cruz, CA USA
72. Ms. Goldklangs Fourth Grade Class. Concord Road School, Ardsley, NY USA
73. Zoeie Thomas. Brewer Elementary School, Columbus, GA USA
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75. Zachary Garlitos. Highlands Elementary School, Santa Clarita, CA USA
76. Charles Dulac. Highlands Elementary School, Santa Clarita, CA USA
77. Kevin Richardson. Highlands Elementary School, Santa Clarita, CA USA
78. Jeremiah Cohen. Highlands Elementary School, Saugus, CA USA
79. Courtney Kamyk. Rutland Town School, Rutland, VT USA
80. Shelrita Newsome. Brewer Elementary School, Columbus, GA USA
81. Tommy Downing. Oakdale Elementary School, Dedham, MA USA
82. Dustin Van Kirk. Cherry Brook Primary School, Canton, CT USA
83. Sheppard Math Club. Frederick Douglass Elementary School, Winchester, VA USA
84. Jacob And Trent. Libety Elementary School, Worthington, OH USA
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86. Steve Hargis. Kingston School, Cherry Hill, NJ USA
87. Ryan Carter. Highlands Elementary School, Saugus, CA USA
88. Kara M.. Union Point Elementary School, Union Point, GA USA
89. Miia Korpela. Naenae Intermediate School, Lower Hutt, New Zealand
90. Madison Siebers. Canton Intermediate School, Canton, CT USA
91. Sarah Ciesluk. St. James Catholic School, Duluth, MN USA
92. Steven Hargis. Carusi Elementary School, Cherry Hill, NJ USA
93. Keaton Pregozen. Highlands Elementary School, Santa Clarita, CA USA
94. Steve Hargis. Kingston School, Cherry Hill, NJ USA
95. Shelrita Newsome. Brewer Elementary School, Columbus, GA USA
96. Key Elementary 5th Grade. School, Columbus, GA USA
97. Mrs. Steinbergs Class. Concord Road School, Ardsley, NY USA
98. Brittany Hutchins. Brewer Elementary School, Columbus, GA USA
99. Sehajroop Singh. South Pasadena Middle School, South Pasadena, CA USA
100. Akshay Sankar. International School Of Beijing, Beijing, China
101. Christina Oanca. Cullman East Elementary School, Cullman, AL USA