Number Plate Code

My car has number plate – S208VBJ.

Using my special code S208VBJ adds to 65.

Using the code every character, a digit or a letter, is separate.

Numbers are simply added together so that, in the first number plate 208 is 2 + 0 + 8 = 10.

Letters are translated into numbers in a code. If you know the value of F and H you not only know the value of G, but can easily work out all the rest of the alphabet.

These other plates also add to 65.

Can you crack my code and use it to find out what both of these number plates add up to?

Click here to download the NUMBER PLATE CODE worksheet.

See the Notes for Teachers

This problem is adapted from the NRICH task Numbered Cars with permission of the University of Cambridge. All rights reserved.