Vikal,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.hide{
display: none;
}
</style>
<script>
addEventListener("DOMContentLoaded", function() {
const tables = document.querySelectorAll("table.hide"),
table = tables[tables.length * Math.random() | 0];
table.classList.remove("hide");
})
</script>
</head>
<body>
<table class="hide">
<tr>
<td>1</td>
</tr>
</table>
<table class="hide">
<tr>
<td>2</td>
</tr>
</table>
<table class="hide">
<tr>
<td>3</td>
</tr>
</table>
<table class="hide">
<tr>
<td>4</td>
</tr>
</table>
<table class="hide">
<tr>
<td>5</td>
</tr>
</table>
</body>
</html>