Department of Mathematics and Statistics


Department of Mathematics

Putnam Exam

Problem of the Month

Fall 2015

Problem 1, August 2015

A cake has a quadrilateral shape (four sides). We cut the cake along the two diagonals and eat one of the four pieces. The three remaining pieces weight: 120 grams, 200 grams and 300 grams respectively. What was the initial weight of the cake? (solution due before September 15th 2015).

Please submit your solution for this month problem no later than 15th of the next month. Try to keep your solution to less than two pages. My office is in MSC 426 and my email address is You may also put your solution in my mailbox (Mihai Staic).

If you want to propose a problem please contact me by email or in person.