RDB Sir,
Just before charting, the status was RAC 19.
Usually 3AC Coach may have 4-6 RAC Seats with LHB Coaches mostly having 6 seats.
However, not being sure what the number could have been, if we take it as 4 RAC seats per coach, it adds up to 32, and with 6 RAC seats per coach, it adds up to 48.
(32-19)=13;...
more... (48-19)=29.
Whatever the number was, 13/2=6.5 or 29/2=14.5, these berths led to the confirmation of these two passengers (SLB=> RAC Berths being allocated)