Sasa chukua hao watoto 1,250 nao wawe madume nusu na majike nusu 625 x 10 = 6,250. Chukua idadi ya kwanza 40 + 250 + 1,250 + 6,250 = 7,790 unaona wanavyoongezeka kutoka 40 hadi sasa una bata mzinga 7,790 tayari hapa wewe ni milionea hizi ni sawa na shilingi 467,400,000 unazo ndani.