Question

Simple interest how much time it will take for an amount of 450 to yield rs 81 as an intrest at 4.5% per annum of simple interest

Answer 1

4 years

$SI = \frac{PNR}{100}$
81 = $\frac{450*N*4.5}{100}$
 N = $\frac{81*100}{450*4.5}$
     = 4