4. A fund is to be built by means of 10 deposits at the end of each year. The first deposit is equal to 1,000 and deposits decrease by 100 each year. The purpose of the fund is to award scholarships of amount 2,000, one per year, at the end of each year for as long as possible. The first scholarship is to be paid exactly two years after the last deposit was made. If i = .1 find the maximal number of scholarships