<?xml version="1.0" encoding="UTF-8"?>
<quiz>
  <question type="multichoice">
    <name>
      <text>35.1.1.3 Subsets exercise</text>
    </name>
    <questiontext format="html">
      <text><![CDATA[<p class="HELM_exercise">Exercise</p>
<p>A factory produces cars over a five day period; Monday to Friday. Consider the following sets,</p>
<p>\(A = \{\hbox{cars produced from Monday to Friday}\}\)</p>
<p>\(B = \{\hbox{cars produced from Monday to Thursday}\}\)</p>
<p>\(D = \{\hbox{cars produced on Wednesday}\}\)</p>
<p>\(E = \{\hbox{cars produced on Wednesday and Thursday}\}\)</p>
<p>Which of the following statements are correct?</p>]]></text>
    </questiontext>
    <generalfeedback format="html">
      <text><![CDATA[<p dir="ltr" style="text-align: left;">Let \(A = \{\hbox{Mo},&nbsp;\hbox{Tu},&nbsp;\hbox{We},&nbsp;\hbox{Th},&nbsp;\hbox{Fi} \}\),&nbsp;\(B = \{\hbox{Mo},&nbsp;\hbox{Tu},&nbsp;\hbox{We},&nbsp;\hbox{Th} \}\),&nbsp;\(D = \{\hbox{We}\}\) and&nbsp;\(E = \{\hbox{We},&nbsp;\hbox{Th} \}\), then \(D \subset E \subset B \subset A\). Note that \(E \subset A\) because \(E \subset B\) and \(B \subset A\).</p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.3333333</penalty>
    <hidden>0</hidden>
    <idnumber/>
    <single>false</single>
    <shuffleanswers>true</shuffleanswers>
    <answernumbering>none</answernumbering>
    <showstandardinstruction>1</showstandardinstruction>
    <correctfeedback format="html">
      <text>Your answer is correct.</text>
    </correctfeedback>
    <partiallycorrectfeedback format="html">
      <text>Your answer is partially correct.</text>
    </partiallycorrectfeedback>
    <incorrectfeedback format="html">
      <text>Your answer is incorrect.</text>
    </incorrectfeedback>
    <shownumcorrect/>
    <answer fraction="16.66667" format="html">
      <text><![CDATA[<p>\(B \subset A \)</p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="-5" format="html">
      <text><![CDATA[<p>\(B \subset E\)<br></p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="16.66667" format="html">
      <text><![CDATA[<p>\(D \subset A\)</p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="16.66667" format="html">
      <text><![CDATA[<p>\(E \subset A\)</p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="16.66667" format="html">
      <text><![CDATA[<p>\(D \subset B\)</p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="16.66667" format="html">
      <text><![CDATA[<p>\(E \subset B\)</p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="16.66667" format="html">
      <text><![CDATA[<p>\(D \subset E\)</p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
    <answer fraction="-5" format="html">
      <text><![CDATA[<p>\(A \subset B\)<br></p>]]></text>
      <feedback format="html">
        <text/>
      </feedback>
    </answer>
  </question>
</quiz>
