Question

if the ratio of principal and amount after 5 years be 4:5 rate of interest per annum will be

Answer 1

 

If After 5 years, Amount:Principal=5:4

then after  5 years SI:Principal=1:5

rate for 5 years= ( SI:Principal)*100=(1/5)*100=20%

rate for 1 year=20/5=4%

rate is 4% per annum