Three students have each saved $1000. Each has an investment opportunity in which he or she can invest up to $2000. The rates of return on the students' investment projects are:
Harry: 5%
Ron: 8%
Hermione: 20%.
a) If borrowing and lending is prohibited, so each student uses only his or her own saving to finance his or her own project, how much will each student have a year later when the projects pay their returns?