Question

At what rate percent per annum will ruppes 1250 amount to ruppes 1425 in 4 years at simple interest

Answer 1

let rate be x℅
so s.i in 4 years will be 1250×x×4/100=50x
so 1250+50x= 1425
50x= 1425-1250=175
x= 175/50= 3.5℅