urmilaghalan70 urmilaghalan70 23-09-2021 Mathematics contestada 1) The interest of Rs. 5000 for 4 years is Rs.2400. what is rate of interest ? 2) in how many years ,the interest of Rs.2000 at the rate of 7% p.a.is Rs.560 ?3) what principal will earn the interest Rs.750 in 3 years at the rate of 10% pet year.