Difference between revisions of "2014 UNCO Math Contest II Problems/Problem 1"

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m (moved 2014 UNC Math Contest II Problems/Problem 1 to 2014 UNCO Math Contest II Problems/Problem 1: disambiguation of University of Northern Colorado with University of North Carolina)
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Revision as of 17:13, 19 October 2014

Problem

The Duchess had a child on May 1st every two years until she had five children. This year the youngest is $1$ and the ages of the children are $1, 3, 5, 7$, and $9$. Alice notices that the sum of the ages is a perfect square: $1 + 3 + 5 + 7 + 9 = 25$. How old will the youngest be the next time the sum of the ages of the five children is a perfect square, and what is that perfect square?


Solution

See also