How do I rectify this problem

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MVC4

I am developing mvc application using RAZOR engine using C# and i am facing problem when using two model my. my code is given below

@model List<AnswerSheetValuation.Models.ExamPattern>
@model AnswerSheetValuation.Models.ExamPattern 
@{
    Layout = null;    
}
<table>
<tr>
<td>
@Html.TextBoxFor(model => model.Description)
</td>
</tr>
</table>


for (int i = 0; i < Model.Count; i++)
                 {

                     if (i == 0)
                     {
tr class="highlight" id="@("Exid" + @Model[i].id)" >
                             <td style="text-align:left;width:50%;">
                             <a  href="javascript:void(0);" onclick='GetExamSubject("@Model[i].id")'> @Model[i].ExamName </a>
                             </td>
                             <td style="text-align:center;width:25%;"> @Model[i].GroupName</td>
                             <td style="text-align:center;width:25%;"> @Model[i].TotalSubject</td>
                         </tr>
                     }
}

i want one model using list<>
and another one normal

please give me a solution or suggestion