# Challenge 3: Convert Decimal Number to Binary Number

Given a decimal number, convert it to a binary number.

## We'll cover the following

## Problem Statement

Write a function that takes a number `testVariable`

and returns a string that is its equivalent *binary number*.

### Input

A variable `testVariable`

containing the decimal number.

### Output

String variable that contains the equivalent binary number of the input number.

### Sample Input

```
11
```

### Sample Output

```
"1011"
```

### Try it Yourself

Try this challenge yourself before examining the solution. Good luck!

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