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Challenges Make $2 + 2 = 5$

Ruby, 20 bytes ->a,b{4[a]*4[b]+a+b} Attempt This Online!

posted 3y ago by radarek‭

Answer
#1: Initial revision by user avatar radarek‭ · 2022-01-26T16:25:26Z (almost 3 years ago) 
# [Ruby](https://www.ruby-lang.org/), 20 bytes

<pre><code class="lang-ruby">-&gt;a,b{4[a]*4[b]+a+b}</code></pre>

[Attempt This Online!](https://ato.pxeger.com/run?1=m72kqDSpcsGiNNulpSVpuhZbdO0SdZKqTaITY7VMopNitRO1k2ohUjf3l6QWlyjYKoCV6KRWFKQml6SmKKTkcykoFJSWFCsohQAVZOalKyhXJ9bqAMmkWqBiIF2WmFOaCtSZFg3UGVuLELFVgBtjr6Du762uYKWg7hoU5B-kXqvElZqXwsUFsjTaSEcBiExjITxDHQUgMoLydIEyYGwCE4DIG8TC9RqD9UK8sWABhAYA)