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Difference between revisions of "2014 UNCO Math Contest II Problems/Problem 4"

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m (moved 2014 UNC Math Contest II Problems/Problem 4 to 2014 UNCO Math Contest II Problems/Problem 4: disambiguation of University of Northern Colorado with University of North Carolina)
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Revision as of 17:14, 19 October 2014

Problem

On the first slate, the Queen’s jurors write the number $1$. On the second slate they write the numbers $2$ and $3$. On the third slate the jurors write $4, 5$, and $6$, and so on, writing $n$ integers on the $n$th slate.

(a) What is the largest number they write on the $20$th slate?

(b) What is the sum of the numbers written on the $20$th slate?

(c) What is the sum of the numbers written on the $n$th slate?

Solution

See also

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