HTML(paste0('<textarea id="inputTextToSave2" style="width: 700px; height: 250px;" rows="3" cols="40"><<echo=FALSE,results=hide>>= @ \\begin{question} ',
tr("quesnum"),
' \\end{question} \\begin{solution} ',
tr("resolnum"),
' \\end{solution} %% META-INFORMATION %% \\extype{num} %% \\exsolution{3} </textarea>'
))
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.