freeCodeCamp/curriculum/challenges/portuguese/08-coding-interview-prep/project-euler/problem-235-an-arithmetic-g...

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---
id: 5900f4571000cf542c50ff6a
challengeType: 5
title: 'Problem 235: An Arithmetic Geometric sequence'
videoUrl: ''
localeTitle: 'Problema 235: Uma sequência geométrica aritmética'
---
## Description
<section id="description"> Dada é a sequência aritmética-geométrica u (k) = (900-3k) rk-1. Seja s (n) = Σk = 1 ... nu (k). <p> Encontre o valor de r para o qual s (5000) = -600.000.000.000. </p><p> Dê sua resposta arredondada para 12 lugares atrás do ponto decimal. </p></section>
## Instructions
<section id="instructions">
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: '<code>euler235()</code> deve retornar 1,002322108633.'
testString: 'assert.strictEqual(euler235(), 1.002322108633, "<code>euler235()</code> should return 1.002322108633.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function euler235() {
// Good luck!
return true;
}
euler235();
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>