This was the last question, problem B6, on the 2013 William Lowell Putnam Mathematical Competition. None of the over 4000 students who wrote the exam succeeded in solving the problem.

Apr. 4, 2014

This was the last question, problem B6, on the 2013 William Lowell Putnam Mathematical Competition. None of the over 4000 students who wrote the exam succeeded in solving the problem.
1 Comment
1
Mark warschauer about 10 years ago

Easy. Just put the stone in the middle