IBPS RRB PO Mains 10 Sep 2023 Paper

A invests Rs. ( 2x+2000) in a simple interest at the rate of 30% per annum for 2 years and after 2 years he received the interest from the scheme is ( x + 2100). If the amount of Rs x is invested in a compounded interest scheme at a 30 % per annum for 2 years, then find the compound interest after 2 years ?