Question

Sample table:

        <table>
           <tr>
               <td>14</td>
               <td>information</td>
           </tr>
           <tr>
               <td>70</td>
               <td>information</td>
           </tr>
           <tr>
               <td>19</td>
               <td>information</td>
           </tr>
        </table>

Answer 1

$("tr td:first-child").each(function() {
    var value = parseInt($(this).text(), 10);
    if(value > 50 && value < 100) {
        $(this).parent().remove();   
    }
});

This iterates over the first child (which should always be a td) of each tr element, gets the text of that child, parses it into a Number, and removes the parent tr if necessary.

Here’s a working example.