Function To Return Value Based On OptionButton Choice

Ihave 2 functions which are called in my main program which should return a value due to what the user selects on a userform using option buttons and check boxes.

Function getnum() As Integer
If userform1.OptionButton1.Value = True Then
getnum = 1
End If
If userform1.OptionButton1.Value = True Then
getnum = 3
End If
If userform1.OptionButton1.Value = True Then
getnum = 5
End If
End Function

Function getlevel() As Double
If userform1.CheckBox1.Value = True Then
getlevel = 1.2
End If.......................................