Delhi Police Constable 7 Dec 2020 Shift 2 Paper

A person invested a sum of Rs. 50,000 partly at 15% p.a. and the remaining at 18% p.a. at simple interest. At the end of 2 years, the total interest received was Rs. 16,800. The ratio of the sum at 15% p.a. to the sum at 18% p.a. is: