Villiers vignettes - Can't count, won't count

Telegrammed by Ithuriel
According to Cruella de Villiers, responding to yet another train spotterish question from Maria the Eagle...

Given in a written answer given on the 24th May:

It is expected that 112 vehicles will be built (for Thameslink) during 2014-15 which will make 10 full train length equivalent diagrams.

That's clever, since Thameslink has 12 car trains and the last time I recited my Tables 10 twelves were 120.

Can it be long before Cruella ends up at the Treasury?

UPDATE: This from @Al_S (via Twitter)...

Might 112 carriages be 8x12-car trains plus 2x8-car?

Not all the TL stock will 12 car.