The total number of SBST Citaros will be 1050 - just 51 shy of
the 1101 K230UBs. Assuming that :
> Initial batch of 300 Citaros - registered from 6000 -
6299
> Govt BSEP batch of unknown no. of Citaros - registered from
6300- 6599 (300?)
> 2nd batch of 450 Citaros - registered from 6600 - 6999 (400
units) and extra 50 of new unknown range.
And if we factor in the 51 SMRT Buses Citaros we have exactly
1101 Citaros in Singapore!
And let's say the B10M MK IV fleet replacements is also Citaros,
then we'll have more than 1101 Citaros in Singapore :P
I can only say that your Maths failed.