B) = (Investment of A) / (investment of B)
(390 - 10 x 12) / balance of Profit of B = 3000/4000 = 3/4
(Since remuneration of A is RS. 10 per month)
Balance profit of B = (4 x 270)/3 = Rs. 360
Since B does not get any remuneration, HENCE B receives Rs. 360 at the end of the year.