IBPS RRB PO Mains 13 Oct 2019 Paper

Two partners A and B invested Rs. 2800 and Rs .2100 in a business. C joins them after x months with Rs. 3500. Before 2 months of completion, B leaves the business. If at the end of the year, C receives Rs. 350 out of the profit of Rs. 1050, then find the value of x.