Very Simple Mathematical Calculation in XSL

Hi,
I am trying to do simple math calculations with XSL and I'm attaching my
input XML file to explain better what I'm trying to do.
I am not sure how to do this in XSL.

This is what I want;
---------------------------- 
Number of correct questions to pass the test for the module;
   Module Type T:
   	Number of questions:5
 	Maximum Score=100
	Passing Score=80
	Number of correct answers to pass the test= 4
  Module Type P
 	Number of Questions: 6
	Maximum Score=100
	Passing Score=80
	Number of correct answers to pass the test= 4.8 ( I want to
round-up this value to the closest integer value)
---------------------------
Thank you..

Cihan


	



<?xml version="1.0"?>
<!DOCTYPE course SYSTEM "tedsassess.dtd">
<course courseNum="EDITEST"> 
  <module test-type="T" max-score="100" passing-score="80"> 
	 <title> 
		<para>Test-out</para> 
	 </title> 
	 <intro> 
		<para>This is the test-out module.</para> 
	 </intro> 
	 <objective title="ignore me" num-questions="5"
num-test-out-questions="5"> 
	</objective> 
  </module> 
<module test-type="P" max-score="100" passing-score="80"> 
	 <title> 
		<para>Test Module 1</para> 
	 </title> 
	 <intro> 
		<para>This is the intro to Module 1.</para> 
	 </intro> 
	<objective title="Objective 1.1 Title" num-questions="2"
num-test-out-questions="1">
	    <para>This is objective 1.1... it has a
<emphasis>bold</emphasisword.</para>              
	</objective> 
             <objective title="Objective 1.2 title" num-questions="4"
num-test-out-questions="1"> 
	    <para>This is objective 1.2.</para>
	 </objective> 
  </module> 
</course>

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