title: Round a float number to the nearest integer divisible by five
body: <p>I search this everywhere, no solution , i need to round to the nearest 5 integers,
  don't know how to formulate this , for example round(0.13) will should return 5  ; here is the pattern logic with value to round first and expected result after rounding ;</p>
  
  <pre><code>0.12 =&gt; 0
  0.99 =&gt; 0
  1.01 =&gt; 0
  4.99 =&gt; 5
  5.45 =&gt; 5
  7.00 =&gt; 5
  8.00 =&gt; 10
  9.10 =&gt; 10
  14.34 =&gt; 15
  17.4 =&gt; 15
  17.5 =&gt; 20
  37.6 =&gt; 40
  </code></pre>