Principal for the first year = Rs. 25000
Interest for the first year = Rs. 25000×8×1100= Rs. 2000
Amount at the end of the first year = Rs. (25000 +2000) = Rs. 27000
Principal for the second year = Rs. 27000
Interest for the second year = Rs. 27000×8×1100= Rs. 2160
Amount at the end of the second year = Rs. (27000 +2160) = Rs. 29160
Therefore, Ratna has to pay Rs. 29160 after 2 years to discharge her debt.