A and B   A    B   A and B are whole numbers and neither of which are divisible by 10. If the product of A and B equals 20000, find the absolute value of the difference of A and B.
April 17, 2006
Past Problems
	E-mail Solutions to: pow@umassd.edu
	Correct Solutions
	Radu Ionescu. Montreal, Quebec, Canada Eugene Roytman. New York, NY Andy Drabic. Archbishop Hoban High School, Akron, OH Christopher Thomas. New York, NY Michel Poulin. Collège Jean-Eudes, Montréal, Québec, Canada Dmitry Vagner. Ranney School, Tinton Falls, NJ Gopal Kumar. Bridgewater, NJ Jerrold Greenberg. New York, NY Aristides Kyriakakis.  Thessaloniki.  Greece Greg LaCroix. Blackwood, NJ Emil Lalov. Mathematical High School, Pleven, Bulgaria Chris Hanes. West Port High School, Ocala, FL Craig Sidell. NY Farid Lian. Uniatlantico, Barranquilla-Colombia Wenlin Fan. Mountain Top, PA Willie Dong. Westlake Elementary School, Santa Cruz, CA Kevin Dong. Westlake Elementary School, Santa Cruz, CA Frank McGartland. Saskatoon, SK., Canada. Catherine Tegeler. Lewisville, NC Lisa Schechner. Schreiber HS, Port Washington, NY Magdy Essafty.Alexandria. Egypt Haiqing Chen. Mountain Top, PA Wenlin Fan. Mountain Top, PA Nancy Huynh. Everett, MA Mike Osterfoss. Moore, SC Jerome Cherry.Nait.Edmonton,Alberta, Canada Joume Bautik. St Arthur Prep, Elbonia Shena Jagnarain. Gwinnett County Public Schools, Duluth, GA Don Miller. Oregon City, OR Shaan Arora. Brookstone School, Columbus, GA Hendrik Salomons. Arapoti , Brazil Zaw Hein. Hoyskole i Bergen, Hordaland, Norway Jill McLaughlin. Rye Junior High School, Rye, NH Bar Greengrass. Israel Marius Damian. Braila, Romania Phillip Ai. Hammarskjold Middle School, East Brunswick, NJ Bill Freeman. Kingwood High School, Kingwood, TX Tim Poe. Austin, TX Catherine Cunningham. Creekwood Middle School. Kingwood, TX Katherine Wang. South Pasadena Middle School, South Pasadena, CA Mike Han. Forsyth Country Day School, Lewisville, NC Aashrita Mangu. South Pasadena Middle School, South Pasadena, CA David Shi. JLS  Middle School, Palo Alto, CA Sarah Chen. Marie Curie Middle School, New York, NY Daniel Acosta-Kane. Miami Killian Senior High, Miami, FL Garrett Hix. Brookstone School, Columbus, GA Nikki Tan. Southridge School, Surrey, BC, Canada Svadharma Keerthi. South Pasadena Middle School, South Pasadena, CA McKenzie Pieper. Creekwood Middle School, Kingwood, TX Christopher Boyd Rakesh Geddam. Chennai, India Sagar Patel.  Brookstone School, Columbus, GA Tony Gu. Northwest Junior High School, Coralville, IA Michelle Lam. South Pasadena Middle School, South Pasadena, CA CJ Magbual.  Saint Mary's School, Novaliches, Quezon City, Philippines Jennifer Sailor. Osceola Middle School, Ocala, FL Diane Kristiansen.  Westwood College, Dallas, Texas Brianna Loo. South Pasadena Middle School, South Pasadena, CA John Song. White Station HS, Memphis, TN Amanda Tu.  Southridge School, Surrey, BC Challa Suneetha.  Chennai, India Pratik.  Huntsville, AL Allamanis Miltiadis. Anatolia High School, Thessaloniki, Greece Karthik Vaidyanathan.  India Roland Vyncke.  Bruges, Belgium Kunal Singh. Kendriya Vidyalaya Happy Valley, Shillong, India Ms. Rothermel. Rye Junior High School, Rye, NH Anthony Pabillano. Flour Bluff High School, Corpus Christi, TX Jayanth. Vivekanandha Vidhyalaya, Chennai, TN, India Richard Levine. Clearwater, FL Karthik Vaidyanathan. Delhi, India Tom Wilcox. Wilcox Technical H.S, Meriden, CT Kelli Hilgers. Central High School, Brooksville, FL Ross Pacheco. Hastings Middle School Fairhaven, MA James Letendre. Southington High School, Southington, CT GÃkhan Koyunlu. BaÄŸlarbaÅŸÄ High School, Turkey Jason Proctor. Westville High School, Westville, OK Topher Conlna. University of Florida, Gainesville, FL Tiffany Chen. South Pasadena Middle School, South Pasadena, CA Matthew Wong. South Pasadena Middle School, South Pasadena, CA Peter Moynahan. Rye Junior High, Rye, NH Jeff Graetz. Dayton, OH Kristy Chang. South Pasadena Middle School, South Pasadena, CA Albert Soh. Eldorado K-8, Superior, CO Rin Sone. South Pasadena Middle School, CA Chiraag Gupta. Southridge School, Surrey, BC , Canada Geetha Devarajan. Vivekanandha Vidhyalaya, Chennai, TN, India Kevin Cua Temew. Davao Christian High School, Davao City, Philippines James Kawakami. South Pasadena Middle School, South Pasadena, CA Chris Maakal. Pretoria, South Africa Richards Bay.  South Africa Victor Preda James McBean. Toronto, Canada Stephen Farver. PJ23 High School, Katy, TX Kevin Boyle. PJ23 High School, Katy, TX Jessica Tello. PJ23 High School, Katy, TX Samantha Dante. PJ23 High School, Katy, TX Ryan Dunn. PJ23 High School, Katy, TX Ellen Stidham. PJ23 High School, Katy, TX Jacob Neeson. PJ23 High School, Katy, TX Elizabeth Bramanti. PJ23 High School, Katy, TX Vincent Wang. PJ23 High School, Katy, TX Chris Panaligan. PJ23 High School, Katy, TX Genevieve McCorma ck. PJ23 High School, Katy, TX Katherine Seiler.PJ23 High School, Katy, TX Sinnead Flynn. PJ23 High School, Katy, TX Randy Hargis.  West Union, IL Josh Gow.  Sauk Centre HS, Sauk Centre, MN Darryl Gerrow.  Accountant, B. Math Gokhan Koyunlu.  Baglarbasi High School Becky Britton.  St. Luke School, Columbus, GA Ryan Elmer.  Kingwood, TX Andrew Sailor. Osceola Middle School, Ocala, FL Max Wolff. South Pasadena Middle School, South Pasadena, CA Alstyne Gravlee. St. Luke School Brent Danner. Leesburg, IN Graham Anderson. Faith Lutheran College, Plainland, Qld Australia Danny Gordon.  Columbus, GA Gokhan Koyunlu. Uskudar Baglarbasi High School, Turkey Nabiha Choudhury. Kissimmee Middle School, Kissimmee, FL Juliana Beltran. Kissimmee Middle School, Kissimmee, FL Briana Miller. Kissimmee Middle School, Kissimmee, FL Martha Meran. Kissimmee Middle School, Kissimmee, FL Soo-hyun Lee. Sauk Centre HS, Sauk Centre, MN Josh Gow. Sauk Centre HS, Sauk Centre, MN Mark Spanier. Sauk Centre HS, Sauk Centre, MN Ben Gieske. Sauk Centre HS, Sauk Centre, MN Man-Khoi Nguyen. Kerr High School, Houston, TX Siraj Iqbal. Miami Killian Senior High, Miami, FL Cong Tian. Sachem North High school, Long Island, NY Felicia Ratnaraj. Webster Groves High School, St. Louis, MO Daniel Pyon. South Pasadena Middle School, South Pasadena, CA Alan Leung. Mississippi School for Math & Science, Columbus, MS George Hatzikiriakos. Southridge School, Surrey, B.C. Jonathan Uesato. Milpitas Christian School, San Jose, CA Jason Dolinsky, New York, NY Stephen Lue. H.B. Plant High School, Tampa, FL Lusha Zhou. Qingdao, China Michael Vishevnik. Kashish Singhal. Broadview Middle School, Danbury, CT Er Cheryl. Chij St. Nicholas Girls’ School, Singapore Tanvi Rastogi. Bridgewater-Raritan High School, Bridgewater, NJ Maura MacKenzie. Sheffield, MA Iver Meng. South Pasadena Middle School, South Pasadena, CA Jocelyn Bolduc. Edmonton, AB, Canada Dan Dietz.  Creekwood Middle School, Kingwood, TX Fabian Moa. Kuching, Sarawak, Malaysia Zijian Wu.  Portola Middle School, Tarzana, Ca Kelly Cua Temew. Davao Christian High School, Davao City, Philippines Daniel Bernucci.  Collège Jean-Eudes, Montreal, Quebec, Canada Chandru Vittal. Ida Price Middle School, San Jose, CA

 

 Last Updated On: 4/25/06