Art of Problem Solving

2021 JMPSC Invitationals Problems/Problem 5: Difference between revisions

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An <math>n</math>-pointed fork is a figure that consists of two parts: a handle that weighs <math>12</math> ounces and <math>n</math> "skewers" that each weigh a nonzero integer weight (in ounces). Suppose <math>n</math> is a positive integer such that there exists a fork with weight <math>n^2.</math>  What is the sum of all possible values of <math>n</math>?
An <math>n</math>-pointed fork is a figure that consists of two parts: a handle that weighs <math>12</math> ounces and <math>n</math> "skewers" that each weigh a nonzero integer weight (in ounces). Suppose <math>n</math> is a positive integer such that there exists a fork with weight <math>n^2.</math>  What is the sum of all possible values of <math>n</math>?
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==Solution==
==Solution==

Revision as of 14:03, 11 July 2021

Problem

An $n$-pointed fork is a figure that consists of two parts: a handle that weighs $12$ ounces and $n$ "skewers" that each weigh a nonzero integer weight (in ounces). Suppose $n$ is a positive integer such that there exists a fork with weight $n^2.$ What is the sum of all possible values of $n$?

Solution