title: Rounding off a positive number to the next nearest multiple of 5
body: <p>I need to round of a number (the input is guaranteed to be an integer &amp; is positive) to the next multiple of 5.</p>
  
  <p>I tried this:</p>
  
  <pre><code>int round = ((grades[j] + 2)/5) * 5;
  </code></pre>
  
  <p>However, this rounds off the number to the nearest multiple of 5.</p>
  
  <p><strong><em>Eg: 67 is rounded off to 65, not 70.</em></strong></p>