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<HTML>
<BODY>
<H1><CENTER>Calculating Discount</CENTER></H1>
<?php
$price = 200;
$qty = 10;
echo "<H4>Original price is $price</H4>";
if ($qty =10) {
$discount=10;
}elseif ($qty <=20) {
$discount=15;
}elseif (qty <=30) {
$discount=20;
}elseif($qty <=40){
$discount=25;
}
echo "<H4>Discount is $discount percent</H4>";
echo "<H4>Price after discount is ", (($price * (100 - $discount)/ 100)), "</H4>";
?>
</BODY>
</HTML>
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