Question

anita borrowed a sum of money from raju at the rate of 5% per annum compound interest for two years.she returnes 5000 ruppees on the end of first year. at the end of second year she returned 3820 ruppees. the principal she borrowed was

Answer 1

money borrowed be x
amount =5000+3820=8820
time =2
rate=5
8820=x(1+5/100)^2
8820=x(21/20)^2
8820=x×441/400
8820×400/441=x
20×400=x
8000=x
money borrowed is 8000