We have, three persons start a business with capitals in the ratio =
1
3
:
1
4
:
1
5
= 20:15:12 So, first investment = 20x second investment = 15x third investment = 12x Given that first withdraws half its capitals after 4 months. So, first investment after 12 months = 20x×4+10x×8=160x second investment after 12 months =15x×12=180x third investment after 12 months =12x×12=144x Total investment =160x+180x+144x=484x Total annual profit =96,800rs Then first share =