Sunday Times Teaser 2809 – This and That
by Victor Bryant
Published: 24 July 2016 (link)
I have written down a list of eleven numbers and then consistently replaced digits by letters, with different letters for different digits. In this way the list becomes:
SO DO WHAT NOW ADD AND SEND IN THIS AND THAT
The grand total of these eleven numbers is a four-figure number.
Numerically, what is THIS + THAT?