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Problems for Year 31 (2019-2020)

Note: Year 31 consists of three rounds of five problems each.

Click to download the Round 2 problems

Round 2 Submission Deadline: December 02, 2019

Problem 3 was updated on 10/24 to indicate that a, b, c, and d are positive integers.

Web deadline: 8 PM Eastern / 5 PM Pacific on the due date
Mail deadline: Postmarked on or before the due date

Remember to fully justify all your answers - don't just send numerical answers.

Read the complete rules to learn more about how to submit your solutions.

Past rounds and solutions:

You can also check out past years' USAMTS problems.

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