Question

sum of what will be the rate if the interest on rs 100 for 2 year is rs 9?

Answer 1

Let Rate be R
 We know that P*R*T/100=SI
                         9=100*R*2/100
                         9=R*2
                       so, R=4.5%       
                        

Answer 2

p=100
t= 2
si= 9
9 = (100 x 2 x r)/100
r= 900/200
= 4.5%
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