Question
I want a drop down list, where each item would have a separate value and when one item is selected, the corresponding value shall be posted in a separate cell.

For example, say the items to appear on the list are A, B, C, D and the corresponding values are, 10, 20, 30, 40. Say, when the user selects B, the corresponding value 20 is posted in another cell.

hi, please check attached file. see if this is what you're trying to do.
below is the code. Hope it helps :()

Private Sub ComboBox1_Change()

Select Case ComboBox1.Value

   Case "A"
   
       Cells(1, 2).Value = "10"
   
   Case "B"
   
     Cells(1, 2).Value = "20"
    
   Case "C"
   
     Cells(1, 2).Value = "30"
    
   Case "D"
   
     Cells(1, 2).Value = "40"

End Select

End Sub


Private Sub Workbook_Open()

With Sheet1.ComboBox1

  .AddItem "A"
  .AddItem "B"
  .AdItem "C"
  .AddItem "D"

End With

End Sub

how about a nested if statement: if (cell1="a",1, if(cell1="b", 2, if...
or a vlookup table