Question

(On 400 for 6 month at 9% per annum.
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Answer 1

Step-by-step explanation:

Si =p×r×t/100

=400×6/12×9/100

=400×9/200

=18

So,

SI=18

Hope you fine bro..☆☆

Answer 2

Step-by-step explanation:

I = prn/100

here,

p=400

r=9%

n=1/2 year

I=400*9/2*100

I=18