Question

A sum was invested at simple interest . At the end of four years , the total interest was equal to the sum . At the end of five years the tofal interest was 12500. Find the interest on the sum at the end of three years (in ₹)​

Answer 1

Answer:

Principle amount= Rs. x

Interest in one year=x/4

Interest in 4 years =x

interest in 5 years=(x/4)×5=12500

= x/4=12500/5

=x/4=2500

=x=2500×4

x=10000

so, interest in 4 years = principle amount = Rs. 10000

interest at the end of 3 years =(x/4)×3=2500×3

=Rs. 7500