A new
Problem of the Week will be posted each Monday. Solutions are due the following Monday at 2pm. View the
Problem of the Week rules HERE.
Winners should complete the form below and email it from your cmich email account to
ahler1dj@cmich.edu.
Problem of the Week, Spring 2017
Problem 560
Problem 559
 Problem
 Solution
 There were three correct solutions to problem 559. The solvers were Chase Bender, ChengHao Fu, and Zhang Yifan. Zhang Yifan is a graduate student, and is not eligible for prizes. The $20 prize is split between Chase Bender and ChengHao Fu.
Problem 558
 Problem
 Solution
 There was one correct solution to problem 558. The solver was Zhang Yifan. Zhang Yifan is a graduate student, and is not eligible for prizes. Problem 559 will be worth $20.
Problem 557
 Problem
 Solution
 There were three correct solutions to problem 557. The solvers were Brianne Becker, Muhammad Abu Summah, and Zhang Yifan. Zhang Yifan is a graduate student, and he is not eligible for prizes. The $10 prize is split between Muhammad Abu Summah and Brianne Becker.
Problem 556
 Problem
 Solution
 There were three correct solutions to problem 556. The solvers were Nathan Bloom, ChengHao Fu, and Zhang Yifan. Zhang Yifan is a graduate student, and he is not eligible for prizes. The $10 prize is split between Nathan Bloom and ChengHao Fu.
Problem 555
 Problem
 Solution
 There were two correct solutions to problem 555. The $10 prize is split between Jacob Lentz and Meng Yang.
Problem 554
 Problem
 Solution
 There were ten correct solutions to problem 554. The solvers were Michael Abruzzi, Brianne Becker, James Carter, Salam Dagamseh, Courtney Foote, Daniel Ntiamoah, Nathan Stempky, Savannah Swiatlowski, Emma Welch, and Meng Yang. A random drawing was held to determine the prize winners. The $10 prize is split between Courtney Foote and Emma Welch.
Problem 553
 Problem
 Solution
 There were five correct solutions to problem 553. The solvers were ChengHao Fu, Lily Ireton, Chris Kao, Meng Yang, and Zhang Yifan. The $10 prize for best solution by an undergraduate goes to ChengHao Fu.
Problem 552
 Problem
 Solution
 There were seven correct solutions to problem 552. The solvers were Chase Bender, ChengHao Fu, Lily Ireton, Zack Josefiak, Paul Rappaert, Meng Yang, and Zhang Yifan. A random drawing was held to determine the two prize winners. The $10 prize is split between Chase Bender and ChengHao Fu.
Problem 551 Problem
 Solution
 There were three correct solutions to problem 551. The solvers were ChengHao Fu, Meng Yang, and Zhang Yifan. Zhang Yifan is a graduate student, so the $10 prize is split between ChengHao Fu and Meng Yang.
Problem of the Week, Fall 2016
Problem 550

Problem

Solution
 There were five correct solutions to problem 550. The solvers were Lily Ireton, Daniel Ntiamoah, Jayda Sykora, Meng Yang, and Zhang Yifan. A random drawing was held to determine the prize winners. The $10 prize is split between Lily Ireton and Jayda Sykora.
Problem 549

Problem

Solution

There were five correct solutions to problem 549. The solvers were Lily Ireton, Nate Stempky, Daniel Ntiamoah, David Walter, and Zhang Yifan. A random drawing was held to determine the prize winners. The $20 prize is split between Lily Ireton and David Walter.
Problem 548

Problem

Solution
 There were three correct solutions to problem 548. The solvers were Luke Edholm, Daniel Ntiamoah, and Zhang Yifan. None of the three are undergraduate students, so no prize will be awarded this week. Next week's prize will be $20
Problem 547

Problem

Solution

There were two correct solutions to Problem 547. The solvers were Meng Yang and Zhang Yifan. Zhang is not an undergraduate student, and therefore he is not eligible for prizes. The $10 prize goes to Meng Yang.
Problem 546

Problem

Solution
 There were two correct solutions to Problem 546. The solvers were Meng Yang and Zhang Yifan. Zhang is not an undergraduate student, and therefore he is not eligible for prizes. The $10 prize goes to Meng Yang.
Problem 545

Problem

Solution
 There were two correct solutions to problem 545. The solvers were Meng Yang and Zhang Yifan. Zhang is not an undergraduate student, and therefore he is not eligible for prizes. The $10 prize goes to Meng Yang.
Problem 544

Problem

Solution
 There were three correct solutions to problem 544. The solvers were Leo Gao, Lily Ireton, Meng Yang, and Zhang Yifan. Gao and Zhang are not undergraduate students, and therefore they are not eligible for prizes. The $10 prize is split between Lily Ireton and Meng Yang.
Problem 543

Problem

Solution
 There were two correct solutions to problem 543. The solvers were Meng Yang and Zhang Yifan. Yifan is a graduate student, and he is therefore not eligible for prize money. The $10 prize goes to Meng Yang.
Problem 542

Problem

Solution
 There were three correct solutions to problem 542. The solvers were Lily Ireton, Meng Yang, and Zhang Yifan. Yifan is a graduate student, and he is therefore not eligible for prize money. The $10 prize is split between Lily Ireton and Meng Yang.
Problem 541

Problem

Solution
 There were two correct solutions to Problem 541. The solvers were Daniel Ntiamoah and Meng Yang. Nitamoah is a graduate student, and he is therefore not eligible for prize money. The $10 prize goes to Meng Yang.
Problem 540

Problem

Solution
 There were five correct solutions to Problem 540. The solvers were Aziz Ghandorah, Lily Ireton, Daniel Ntiamoah, Meng Yang, and Zhang Yifan. A random drawing was held to determine the prize winners. Aziz Ghandorah and Lily Ireton split the $10 prize.
Problem 539

Problem

Solution
 There were six correct solutions to Problem 539. The solvers were Brianne Becker, Lily Ireton, Sam Mooradium, Daniel Ntiamoah, Meng Yang, and Zhang Yifan. A random drawing was held to determine the prize winners. Brianne Becker and Lily Ireton split the $10 prize.