IBPS RRB Office Assistant Mains 17 Oct 2021 Paper

Rohan and Sohan started a partnership business with initial investment in the respective ratio of 3: 1. After 4 months, Rohan invested Rs. 2000 more and after 2 more months Sohan invested Rs. 6000 more. If Rohan’s profit share is double of sohan’s profit share after a year, then what was Rohan’s initial investment?