Designed for elementary and middle school students	Middle Number         1             row 1       3    5           row 2      7   9    11         row 3    13   15    17    19       row 4  21   23    25    27    29     row 5 If the consecutive odd counting numbers are arranged as shown above, what will be the middle (center) number in the 13th row?
November 28, 2005
Past Problems
	E-mail Solutions to: brainteaser@umassd.edu
	Names will only be posted for students in elementary and middle school
	Correct Solutions
	Alicia Li.  Wilson Elementary School, Anoka, MN Phillip Ai.  Hammarskjold Middle School, East Brunswick, NJ David Lu.  Rego Park Elementary School, New York, NY Brian Chan.  Summit Middle School, Coquitlam, BC, Canada Alyssa Bennett.  James Mastricola Upper Elementary School, Merrimack, NH Arun Ganesh.  Glenwood Elementary School, Chapel Hill, NC Jonathan Liu.  Churchill Junior High School, East Brunswick, NJ Kathleen De Coste.  La Canada Elementary, La Canada, CA Radu Casian Ionescu.  Montreal, Quebec, Canada Zahir Shaikh.  A.L. Lotts, Knoxville, TN David Shi.  JLS Middle School, Palo Alto, CA Minray Yang.  Carwise Middle School, Palm Harbor, FL Matthew DeCoste.  La Canada Middle School, La Canada, CA Vajrang Vemulapalli.  Anderson Elementary, Plano, TX Sahit Bollineni. Highmeadow Common Campus, Farmington Hills, MI Rohit Bollineni. Power Middle School, Farmington Hills, MI Chris Truitt. Liberty Hill Middle School, Liberty Hill, TX Rahul Rege. Carwise Middle School, Palm Harbor, FL Aaron Rose. Hastings Middle School, Fairhaven, MA Pamela Chretien. Hastings Middle School, Fairhaven, MA Marcus Ciociola. Pembroke Intermediate School, Corfu, NY Michael Schetinin. Pembroke Intermediate School, Corfu, NY Brenden VonKramer. Pembroke Intermediate School, Corfu, NY Collin Lewis. Pembroke Intermediate School, Corfu, NY Caleb Patterson. Pembroke Intermediate School, Corfu, NY Marlene Vassalo. Hastings Middle School, Fairhaven, MA Nicholas Caligaris. Brookstone School, Columbus, GA Sanjana Nidugondi. Fairlands Elementary, Pleasanton,CA Kunal Singh. Kendriya Vidyalaya, Happy Valley, Shillong, India Jenna Lawson. Pembroke Intermediate School, Corfu, NY Luke Cullinan. Pembroke Intermediate School, Corfu, NY Sami Phillips. Pembroke Intermediate School, Corfu, NY Jessica Rudnik. Pembroke Intermediate School, Corfu, NY Jesica Urban. Pembroke Intermediate School, Corfu, NY Dylan Rodrigues. Hastings middle school, Fairhaven, MA Anna Genestreti. Rye Junior Highschool, Rye, NH Raymond Lawton. Hastings Middle School, Fairhaven, MA Josh Alman. University of Toronto Schools, Toronto, ON Kelcie McGarvey. Hastings Middle School, Fairhaven, MA Danielle Sharick. Pembroke Intermediate School, Corfu, NY Heather Gilliam. Pembroke Intermediate School, Corfu, NY Ariana Roth. Jennie Wilson Elementary, Garden City, KS Whitney Cummings. Jennie Wilson Elementary, Garden City, KS Brandon Preziosi. Far Hills Country Day School, Far Hills, NJ Kristen Nachtman. Far Hills Country Day School, Far Hills, NJ Ryan McCluskey. Far Hills Country Day School, Far Hills, NJ Traci Dreher. Far Hills Country Day School, Far Hills, NJ Erin McKnight. Shepherd Catholic School, Orlando, Fl Mary Hanvey. Shepherd Catholic School, Orlando, FL Bianca Oliveira. Shepherd Catholic School, Orlando, FL Mark Hooven. Shepherd Catholic School, Orlando, FL Kegan Padot Good. Shepherd Catholic School, Orlando, FL Jane Park. South Pasadena Middle School, South Pasadena, CA Hunter Azarias Fenn. International School Of Uganda,Kampala, Uganda Michelle Huang. T.H. Rogers, Houston, TX
	59% of respondents successfully answered this problem.

 

 Last Updated On: 12/19/05