Anil invests Rs 22000 for 6 years in a scheme with 4% interest per annum, compounded half-yearly.
Separately, Sunil invests a certain amount in the same scheme for 5 years, and then reinvests the entire
amount he receives at the end of 5 years, for one year at 10% simple interest. If the amounts received by
both at the end of 6 years are equal, then the initial investment, in rupees, made by Sunil is