✪ Choose the correct option.
A sum of money was invested in scheme A for 12 years, which offers simple interest at a rate of 9% p.a. The amount received from scheme A was then invested for 2 years in scheme B which offers compound interest ( compounded annually ? at a rate of 10% p.a. If the interest received from scheme B was Rs 873.6, what was the sum invested in scheme A ?